To see the other types of publications on this topic, follow the link: ITSM.
Journal articles on the topic 'ITSM'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'ITSM.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Deutscher, Jan-Helge, and Carsten Felden. "ITSM-Prozesse." Controlling 21, no. 6 (2009): 309–14. http://dx.doi.org/10.15358/0935-0381-2009-6-309.
Full text
2
Berihun, Getamesay, and Dereje Teferi Lemma. "Developing an Improved ITSM Framework for Ethio Telecom." International Journal of Computer and Information System (IJCIS) 2, no. 3 (July 7, 2021): 64–74. http://dx.doi.org/10.29040/ijcis.v2i3.35.
Full textAbstract:
Abstract—Telecom service providers are engaged exhaustively in providing various kinds of IT services for their customers. These IT services should be customer-oriented, and quality-based to be competitive in the market. To this end, organizations should manage their IT services effectively and efficiently by introducing various Information Technology Service Management (ITSM) mechanisms. However, improving or developing optimal ITSM mechanisms is a subject of great concern that needs further investigation academically. Hence, developing an improved and customized ITSM framework to manage the various IT services delivered by the IT service provider is important.To the best of the researcher’s knowledge, little or no research has been conducted to design and develop ITSM frameworks for the telecom sector in Ethiopia. Previous studies focused on the implementation, adoption, tailoring, and system or model development for selected ITSM processes within the Ethiopian context. Ethio telecom (ET), the sole telecom service provider of Ethiopia, has a gap in the existing ITSM practices. Hence, this research study intends to investigate the current ITSM practice of Ethio telecom and propose an ITSM framework based on ITIL best practices that ensures the quality of IT services and improve customer satisfaction. Design science research methodology was employed to design and develop the ITSM framework. Furthermore, a qualitative research approach was followed to gather and analyze the primary data. Semi-structured interviews, observation, and document analysis were employed to collect different kinds of data. Also, thematic analysis was used to analyze the data that was collected from the respondents. A triangulation technique was applied to keep the validity and reliability of the research study. The findings of the research revealed that the existing ITSM practice did not address the needs of the organization. Finally, a new ITSL framework was proposed by incorporating the needs of the organization and demonstrated to selected respondents after passing through rigorous design, development, and evaluation stages. The proposed framework was evaluated by various IT staff through validated evaluation models. Consequently, the evaluation result disclosed that the proposed framework can help to improve the current ITSM practice of the company by maximizing the quality of IT services and customer satisfaction.
3
Marasco, M., A. Berteotti, J. Weyershaeuser, N. Thorausch, J. Sikorska, J. Krausze, H. J. Brandt, et al. "Molecular mechanism of SHP2 activation by PD-1 stimulation." Science Advances 6, no. 5 (January 2020): eaay4458. http://dx.doi.org/10.1126/sciadv.aay4458.
Full textAbstract:
In cancer, the programmed death-1 (PD-1) pathway suppresses T cell stimulation and mediates immune escape. Upon stimulation, PD-1 becomes phosphorylated at its immune receptor tyrosine–based inhibitory motif (ITIM) and immune receptor tyrosine–based switch motif (ITSM), which then bind the Src homology 2 (SH2) domains of SH2-containing phosphatase 2 (SHP2), initiating T cell inactivation. The SHP2–PD-1 complex structure and the exact functions of the two SH2 domains and phosphorylated motifs remain unknown. Here, we explain the structural basis and provide functional evidence for the mechanism of PD-1-mediated SHP2 activation. We demonstrate that full activation is obtained only upon phosphorylation of both ITIM and ITSM: ITSM binds C-SH2 with strong affinity, recruiting SHP2 to PD-1, while ITIM binds N-SH2, displacing it from the catalytic pocket and activating SHP2. This binding event requires the formation of a new inter-domain interface, offering opportunities for the development of novel immunotherapeutic approaches.
4
Rouhani, Saeed. "A fuzzy superiority and inferiority ranking based approach for IT service management software selection." Kybernetes 46, no. 4 (April 3, 2017): 728–46. http://dx.doi.org/10.1108/k-05-2016-0116.
Full textAbstract:
Purpose Information technology service management (ITSM) has become a major IT department management system in organizations. Successful implementation of ITSM depends on select adequate ITSM software. Evaluation and selection of the ITSM solution or software packages is complicated and time-consuming decision-making problem. This paper aims to present an approach for dealing with such a problem. Design/methodology/approach This approach introduces functional, non-functional requirements and novel fuzzy out-ranking evaluation method for ITSM software selection. The presented approach breaks down ITSM software selection criteria into two broad categories, namely, functional (service strategy, service design, service transition, service operation, continual service improvement according to Information Technology Infrastructure Library V3) and non-functional requirements (quality, technical, vendor, implementation) including totally 46 selection criteria. A novel fuzzy superiority and inferiority ranking (FSIR) was developed and made applicable for ITSM software selection based on identified criteria. Findings The proposed approach is applied to IT services company to select and acquire ITSM software, and the provided numerical example illustrates the applicability of the approach for this choice. The approach can facilitate firms to achieve suitable ITSM software and have a precise acquisition decision; however, the limitation of dependency on experts’ competence and proficiency in the both ITSM field and IT technical issues exists. Research limitations/implications The approach can facilitate firms to achieve suitable ITSM software and have a precise acquisition decision; however, the limitation of dependency on experts’ competence and proficiency in the both ITSM field and IT technical issues exists. Practical implications Facilitating of ITSM implementation through its handy software selection is the major impact of current research. Originality/value A facile FSIR-based approach for software selection has been customized to contribute to the current literature in the ITSM field. Facilitating of ITSM implementation through its handy software selection is the major impact of current research.
5
Rouhani, Saeed, and Ahad Zare Ravasan. "A Fuzzy TOPSIS based Approach for ITSM Software Selection." International Journal of IT/Business Alignment and Governance 5, no. 2 (July 2014): 1–26. http://dx.doi.org/10.4018/ijitbag.2014070101.
Full textAbstract:
Nowadays a growing interest in Information Technology Service Management (ITSM) proves the trends and needs of their implementation in organizations. In order to implement an ITSM project successfully in an organization, it is essential to select a suitable ITSM software. Evaluation and selection of the ITSM software packages is complicated and time consuming decision making process. This paper presents an approach for dealing with such a problem. This approach introduces functional, non-functional and fuzzy evaluation method for ITSM software selection. The presented ITIL based approach breaks down ITSM software selection criteria into two broad categories namely functional (service strategy, service design, service transition, service operation, continual service improvement according to ITIL V3) and non-functional requirements (quality, technical, vendor, implementation) including totally 46 selection criteria. A facile Fuzzy Technique for Order Preference by Similarity to Ideal Solution (FTOPSIS) was customized for ITSM software selection based on identified criteria. The proposed approach is applied to a local Iranian company in the field of IT services in order to select and acquire an ITSM software and the provided numerical example illustrates the applicability of the approach for ITSM software selection. The approach can help practitioners assess ITSM software more properly and have a better software acquisition decision with growth in customer satisfaction and service time reduction.
6
Hamranová, Anna, Mojmír Kokles, and Tatiana Hrivíková. "Approaches to ITSM level measurement and evaluation." SHS Web of Conferences 83 (2020): 01019. http://dx.doi.org/10.1051/shsconf/20208301019.
Full textAbstract:
The paper examines ITSM (IT Service Management) which is based on the internationally accepted ITIL standard (IT Infrastructure Library). Within the domain of ITSM special attention is given to constant improvements in IS/IT services. The aim of the paper is to identify and characterise ITSM metrics and metrics models among which ITSM Maturity Models play an important role. Standard methods of scientific work such as analysis, synthesis, comparison and selection are used for the paper. The main findings are based on the analysis of literature proving the importance of effective IS/IT service management in supporting the business goals of enterprises and organisations. Several authors criticised the extent and detailed character of ITIL.They suggested solving the problems of SME sector by simplifying the processes of ITSM implementation. This is closely related to the proposed system of ITSM metrics and metrics models. The paper provides a detailed elaboration of complex metrics models together with a derived, reduced model with 8 main metrics and other often used tools for IS/IT services measurement, namely ITSM Maturity Models. They are applicable for both a diagnosis of the level of IS/IT services in the companies and eventual correction of plans and for benchmarking the enterprises within their specific branch.
7
Berihun, Getamesay Biyadgilign, and Dereje Teferi. "Developing an Improved ITSM Framework for Ethio Telecom." Journal of Information Systems and Informatics 3, no. 2 (June 25, 2021): 433–55. http://dx.doi.org/10.33557/journalisi.v3i2.145.
Full textAbstract:
Telecom service providers are engaged exhaustively in providing various kinds of IT services for their customers. These IT services should be customer-oriented, and quality-based to be competitive in the market. To this end, organizations should manage their IT services effectively and efficiently by introducing various Information Technology Service Management (ITSM) mechanisms. However, improving or developing optimal ITSM mechanisms is a subject of great concern that needs further investigation academically.
To the best of the researcher’s knowledge, little or no research has been conducted to design and develop ITSM frameworks for the telecom sector in Ethiopia. Previous studies focused on the implementation, adoption, tailoring, and system or model development for selected ITSM processes within the Ethiopian context. Ethio telecom (ET), the sole telecom service provider of Ethiopia, has a gap in the existing ITSM practices. Hence, this research study intends to investigate the current ITSM practice of Ethio telecom and propose an ITSM framework based on ITIL best practices that ensures the quality of IT services and improve customer satisfaction.
8
KISHKOVICH, Yurii P. "Cloud-based ITSM systems as a critical factor for company development." Finance and Credit 27, no. 9 (September 30, 2021): 1997–2007. http://dx.doi.org/10.24891/fc.27.9.1997.
Full textAbstract:
Subject. The article addresses the use of cloud-based ITSM systems. Objectives. I consider the features for the application of cloud-based ITSM systems, both for medium-sized and large companies. Methods. The study employs the comparative analysis of existing approaches to the use of cloud-based ITSM systems. Results. The analysis of the application of the new technology in medium-sized and large enterprises shows that it improves their competitiveness. Conclusions. The practical application of cloud-based ITSM systems significantly expands the capabilities of medium-sized and large companies. An essential element of the use of cloud-based ITSM systems at a real enterprise is the decision of the management, since the implementation of these systems is associated with the existing system of management. Their implementation enables to increase significantly the productivity of labor and leads to enhanced efficiency of all resources involved. Cloud-based ITSM systems considerably reduce the time of business processes, thus, resulting in financial savings. The specifics of this technology is the possibility of smooth operation, even in the event of a theoretical failure, that cannot be accomplished, if local ITSM systems are used.
9
Cronholm, Stefan, and Nicklas Salomonson. "Measures that matters: service quality in IT service management." International Journal of Quality and Service Sciences 6, no. 1 (March 11, 2014): 60–76. http://dx.doi.org/10.1108/ijqss-12-2012-0022.
Full textAbstract:
Purpose – IT service management (ITSM) is a discipline for management and maintenance of IT-systems and is claimed to play a critical role in supporting and satisfying business requirements. However, from a customer perspective, ITSM is considered as being costly and the outcome is not always satisfactory. Measurements used to monitor and evaluate ITSM-processes are mainly suggested from a service provider perspective. The purpose of this paper is to suggest measurements for ITSM based on a customer perspective that can be used for improving questionnaires. Design/methodology/approach – The SERVQUAL scale has been used as a base for suggesting customer-oriented measurements for the ITSM-field. The gathered qualitative empirical data consisted of customer feedback, in questionnaires, to five IT service providers in Sweden. Based on these empirical data, the SERVQUAL scale has been modified according to ITSM-specific customer requirements. The service providers represent the sectors: car construction, forest management, IT consultants, public sector and logistics. Findings – The paper demonstrates three types of findings: confirmation of original SERVQUAL determinants that could be reused in the ITSM-field, modification of attributes of the SERVQUAL determinants to better fit in the ITSM-field, and development of new categories and new attributes. Moreover, the analysis of SERVQUAL in relation to the empirical data revealed that the SERVQUAL's original conceptual structure needed to be improved. The authors have added a third hierarchical level that supports a conceptual understanding. Originality/value – The knowledge contribution consists of a developed SERVQUAL, adjusted to fit the ITSM-field, and a suggested new conceptual structure of SERVQUAL consisting of three concepts: determinant, category and attribute.
10
Irfandhi, Kornelius, Ariani Indrawati, Dwykie Alexandra, Krisantus Wanandi, Yanuari Harisky, and Suryadiputra Liawatimena. "Impelementation of Information Technology Service Management at Data And Information System Center of XYZ University." ComTech: Computer, Mathematics and Engineering Applications 7, no. 1 (March 1, 2016): 41. http://dx.doi.org/10.21512/comtech.v7i1.2220.
Full textAbstract:
Information Technology (IT) is increasingly progressing. Nowadays, the success of a business of the organization/company is highly dependent on the IT infrastructure used. Therefore, organizations/companies have to manage their IT service to be optimal to their customers. Looking at this matter and the increasing dynamics of XYZ University, then Data and Information System Center (Pusdatin) - an IT provider of XYZ University began implementing IT Service Management (ITSM) from 2013 using the latest version of Information Technology Infrastructure Library (ITIL), namely ITIL v3 as a framework for implementing ITSM in its business processes. However, along the way, there are still some problems happen in Pusdatin in order that ITSM can actually support and align with the objectives of XYZ University. Through this paper, the authors want to explain how the implementation of ITSM at Pusdatin, identify the problems related to the implementation of ITSM, and provide the solutions for each problem. The methods used are direct observation to Pusdatin, conductan interview with the Head of Pusdatin and Staff of Pusdatin, and also perform a literature review of books and papers that discuss about ITIL. The result of this research is that ITSM process of Pusdatin generally works quite well but there are still some shortcomings because ITSM is not 100% implemented in all areas.
11
Shahsavarani, Narges, and Shaobo Ji. "Research in Information Technology Service Management (ITSM) (2000 – 2010)." International Journal of Information Systems in the Service Sector 6, no. 4 (October 2014): 73–91. http://dx.doi.org/10.4018/ijisss.2014100105.
Full textAbstract:
In information systems (IS) research, Information Technology Service Management (ITSM) has become a popular research area among IS and management researchers as a result of industry push and the development and advancement of research in service sciences. From academic perspective, a growing number of papers have been published addressing many aspects of ITSM issues. This paper presents the results based on a study of comprehensive review of publications in ITSM from 2000 to 2010. A total of 152 research papers from leading information systems (IS) journals and conference proceedings were identified, categorized and analyzed from the perspectives of reference discipline, theoretical foundation, research method, level of analysis, and research topic. The findings suggest five primary conclusions: 1) there is generally a lack of theoretically driven researches; 2) the field is still improving, with a growing number of published papers dealing with the development of concepts, constructs, models, methods and implementations for theory formalization; 3) ITSM performance issues, justifications, and IT Infrastructure Library (ITIL) topics are among the most popular topics of research; 4) ITSM researchers do not seem to consider research at an individual level; 5) the most popular research method was the conceptual orientation. Recommendations for future research in ITSM are presented and articulated.
12
Kim, Hee-Sun. "A Case Study on Realization of ITSM Performance Applying the Change Management Framework of ITSM." Journal of the Korea society of IT services 10, no. 3 (September 30, 2011): 251–64. http://dx.doi.org/10.9716/kits.2011.10.3.251.
Full text
13
Trinidad, Manuel, Elena Orta, and Mercedes Ruiz. "Gamification in IT Service Management: A Systematic Mapping Study." Applied Sciences 11, no. 8 (April 9, 2021): 3384. http://dx.doi.org/10.3390/app11083384.
Full textAbstract:
Despite the benefits of adopting IT Service Management (ITSM) reference models, such initiatives do not always produce the expected results. The research literature in this area concludes that motivation, engagement, skills, experience, performance and willingness to change of the personnel involved are among the critical factors for an effective ITSM implementation. Gamification has the capability to improve people’s motivation and engagement and to drive people’s behavior to meet the objectives set. Besides, gamification is widely used in learning systems for increasing students’ skills and competences. In the last years, many researchers have added gamification to their process improvement initiatives to increase the motivation and engagement of process participants and to address their behavior throughout the process. Thus, we consider that adopting gamification in ITSM processes can be an interesting area of study. In this paper, we conducted a systematic mapping study to analyze the actual state of research in the field of ITSM gamification and identify the key challenges that justify future research. The results of our study highlight the positive impact of adopting gamification in ITSM processes and that ITSM gamification is a novel an attractive research area with many action possibilities.
14
Priyohutomo, Andreas Niko, and Melkior Nikolar Ngalumsine Sitokdana. "DAMPAK IMPLEMENTASI ISO/IEC 20000 PADA PERUSAHAAN PT. VISIONET DATA INTERNASIONAL." Sebatik 24, no. 1 (June 18, 2020): 29–36. http://dx.doi.org/10.46984/sebatik.v24i1.923.
Full textAbstract:
PT Visionet Data Internasional merupakan perusahaan yang bergerak di bidang Information Technology (IT) yang melayani jasa total managed service. Dalam mewujudkan visi dan misi perusahaan yang efektif, perlu adanya IT Service Management (ITSM) yang memanfaatkan Teknologi Informasi yang berguna untuk memberikan informasi yang berkualitas untuk pelanggannya. Proses manajemen layanan informasi yang diberikan berupa jasa pembuatan, perbaikan dan pengembangan perangkat di bidang IT. Salah satu ITSM bisa dilakukan dengan menggunakan ISO 20000. PT Visionet Data International telah menggunakan ISO 20000 sebagai framework service pada perusahaanya. Penelitian ini menggunakan metode kualitatif deskriptif terhadap IT Compliance sebagai sumber informasi untuk penelitian ini. Pada penelitian ini menghasilkan dampak implementasi penggunaan, temuan, dan rekomendasi setelah mengimplementasikan ISO 20000 pada perusahaan PT Visionet Data International. Dalam penelitian ini, menghasilkan beberapa temuan yaitu belum semua business unit menggunakan ITSM ISO 20000, kurangnya jumlah dan pengalaman SDM dalam mengimplementasikan ITSM ISO 20000. Dari hasil penelitian ini, untuk merekomendasi penerapan ITSM ISO 20000 untuk semua business unit, open recruitment dan adanya training untuk karyawan.
15
Chatterjee, Pranam, Nikolaos Patsoukis, Gordon J. Freeman, and Vassiliki A. Boussiotis. "Distinct Roles Of PD-1 Itsm and ITIM In Regulating Interactions With SHP-2, ZAP-70 and Lck, and PD-1-Mediated Inhibitory Function." Blood 122, no. 21 (November 15, 2013): 191. http://dx.doi.org/10.1182/blood.v122.21.191.191.
Full textAbstract:
Abstract Programmed death (PD)-1 plays a prominent role in the induction and maintenance of peripheral tolerance. The biochemical mechanisms via which PD-1 mediates its inhibitory function remain poorly understood. The cytoplamsic tail of PD-1 contains two structural motifs, an immunoreceptor tyrosine-based inhibitory motif (ITIM) and an immunoreceptor tyrosine-based switch motif (ITSM). It has been reported that SHP-2 tyrosine phosphatase constitutively interacts with PD-1 ITSM and is involved in PD-1-mediated inhibitory function. We sought to identify the nature of PD-1: SHP-2 interaction and to determine whether other TCR-proximal signaling molecules might interact with PD-1 cytoplasmic tail. SHP-2 has two SH2 domains (N-SH2 and C-SH2) and one PTP domain. To identify the region of SHP-2 that interacts with PD-1 we generated five different GST-fusion proteins in which GST was fused with either SHP-2 full length (FL), SHP-2-N-SH2, SHP-2-C-SH2, SHP-2-ΔN-SH2 (lacking the N-terminus SH2 domain) or SHP-2-PTP. Pull down assays with each GST-fusion protein using lysates from naive and activated primary human T cells revealed that PD-1 interacted with GST-SHP-2 fusion protein only after T cell activation along with simultaneous PD-1 ligation. This interaction was mediated selectively via the SH2 domains of SHP-2, indicating that PD-1 requires prior tyrosine phosphorylation in order to undergo interaction with SHP-2. To identify the mechanism of PD-1 tyrosine phosphorylation governing PD-1: SHP-2 interaction, we used COS cells to express PD-1 along with either empty vector, the TCR proximal tyrosine kinase Fyn, or a kinase inactive mutant of Fyn, followed by pull down with each SHP-2-GST fusion protein. No interaction between PD-1 and SHP-2-GST fusion proteins was detected in lysates from COS cells expressing empty vector or kinase inactive Fyn mutant. In contrast, in the presence of active Fyn, PD-1 underwent tyrosine phosphorylation and was able to interact with GST fusion proteins of SHP-2-FL, SHP-2-N-SH2, SHP-2-C-SH2 and SHP-2-ΔN-SH2 but not SHP-2-PTP, providing evidence that PD-1: SHP-2 interaction requires tyrosine phosphorylation of PD-1 by Src family kinases for subsequent SH2-mediated recruitment of SHP-2. To determine the structural and functional role of each individual tyrosine in the ITIM and the ITSM of PD-1 cytoplasmic tail in PD-1: SHP-2 interaction in vivo, we used Jurkat T cells to express cDNA of either PD-1 wild type, PD-1 with the ITIM tyrosine mutated to phenylalanine (PD-1.Y223F), PD-1 with the ITSM tyrosine mutated to phenylalanine (PD-1.Y248F) or PD-1 with both ITIM and ITSM tyrosines mutated to phenylalanine (PD-1.Y223F/Y248F). After activation, PD-1 wild type underwent tyrosine phosphorylation and developed a robust interaction with SHP-2. PD-1.Y223F retained the ability to undergo interaction with SHP-2 after activation, whereas PD-1.Y248F and PD-1.Y223F/Y248F were unable to interact with SHP-2. We examined whether the PD-1 cytopasmic phosphotyrosines might interact with other SH2 domain containing proteins with critical role in T cell activation. We determined that after T cell activation, PD-1 displayed interaction with ZAP-70 and with activated Lck as determined by PD-1 immunoprecipitation followed by immunoblot with antibodies specific for ZAP-70 and for the activation-specific phospho-LckY394. These interactions remained unaffected in T cells expressing PD-1.Y223F but were abrogated in T cells expressing PD-1.Y248F or PD-1.Y223F/Y248F indicating a mandatory role of phosphorylated ITSM but not ITIM for these associations. However, despite their distinct ability to mediate interactions of PD-1 with SHP-2, Lck and ZAP-70, both phosphorylated ITSM and ITIM had a mandatory role in the inhibitory effect of PD-1 on T cell activation. In T cells expressing either PD-1.Y223F or PD-1.Y248F, PD-1-mediated inhibition of IL-2 production was diminished by 50%, but was almost abrogated in T cells expressing the double mutant PD-1.Y223F/Y248F. Our results indicate that the cytoplasmic tail of PD-1 requires tyrosine phosphorylation in order to mediate phosphorylation-dependent interactions and inhibition on T cell activation. Although phosphorylation-dependent interactions of PD-1 with SHP-2, ZAP-70 and Lck involve Y248 in the ITSM, yet unidentified interactions of Y223 in the ITIM are mandatory for PD-1-mediated inhibitory function on T cell activation. Disclosures: Freeman: Boehringer-Ingelheim: Patents & Royalties; Bristol-Myers-Squibb/Medarex: Patents & Royalties; Roche/Genentech: Patents & Royalties; Merck: Patents & Royalties; EMD-Serrono: Patents & Royalties; Amplimmune: Patents & Royalties; CoStim Pharmaceuticals: Patents & Royalties; Costim Pharmaceuticals: Membership on an entity’s Board of Directors or advisory committees.
16
Eissmann, Philipp, Lisa Beauchamp, Joe Wooters, John C. Tilton, Eric O. Long, and Carsten Watzl. "Molecular basis for positive and negative signaling by the natural killer cell receptor 2B4 (CD244)." Blood 105, no. 12 (June 15, 2005): 4722–29. http://dx.doi.org/10.1182/blood-2004-09-3796.
Full textAbstract:
Abstract Triggering of 2B4 (CD244) can induce natural killer (NK)-cell activation, costimulation, or even inhibition of NK-cell activity. Here, we investigate the molecular basis for the different signals generated by 2B4. We show that the first immunoreceptor tyrosine-based switch motif (ITSM) within the cytoplasmic tail of 2B4 is sufficient for 2B4-mediated NK-cell activation, whereas the third ITSM can negatively influence 2B4 signaling. We further identify signaling molecules that associate with 2B4. Signaling lymphocyte activation molecule-associated protein (SAP) can bind to all 4 ITSMs of 2B4 in a phosphorylation-dependent manner. The phosphorylated third ITSM can additionally recruit the phosphatases SHP-1, SHP-2, SHIP, and the inhibitory kinase Csk. SAP acts as an inhibitor of interactions between 2B4 and these negative regulatory molecules, explaining how 2B4 inhibits NK-cell activation in the absence of functional SAP, as occurs in cells from patients with X-linked lymphoproliferative syndrome (XLP). Recently, another function for SAP was proposed: SAP can recruit the kinase Fyn to the SLAM (CD150) immune receptor. We now show that Fyn can also associate with phosphorylated 2B4. Finally, we demonstrate that Fyn and Csk can both phosphorylate 2B4, suggesting a possible mechanism of 2B4 phosphorylation. (Blood. 2005;105:4722-4729)
17
Ravasan, Ahad Zare, Taha Mansouri, Mohammad Mehrabioun Mohammadi, and Saeed Rouhani. "Supporting the Module Sequencing Decision in ITIL Solution Implementation." International Journal of Information Technologies and Systems Approach 7, no. 2 (July 2014): 41–60. http://dx.doi.org/10.4018/ijitsa.2014070103.
Full textAbstract:
Nowadays a growing interest in Information Technology Service Management (ITSM) proves the trends and needs of their implementation in organizations. In order to successfully implement an ITSM project in an organization, it is essential to implement a suitable ITSM solution to support the related processes. The ITSM solution implementation can be conducted either in a big bang or phased manner by module. The present paper intends to offer the analytical means to support decision-making in the implementation sequence of Information Technology Infrastructure Library (ITIL) solution modules. Since the decision problem of the module sequence involves a myriad of organizational and technical issues, which are vague in essence, we propose the Balanced ScoreCard (BSC) based evaluation criteria for supporting module sequencing decision along with fuzzy Technique for Order Preference by Similarity to Ideal Solution (FTOPSIS) method to be applied. The proposed approach has been applied to a local Iranian company in the field of IT services to implement the acquired ITSM solution; the provided numerical example illustrates the applicability of the approach for the purpose. The priorities for the implementation sequence of the modules are determined in the case study.
18
Patsoukis, Nikolaos, Jonathan Duke-Cohan, Apoorvi Chaudhri, Eunyoung Park, Council Asia, Anders Berg, Gordon J. Freeman, Michael Eck, and Vassiliki A. Boussiotis. "The Two SH2 Domains of SHP-2 Bridge Two PD-1 Molecules Resulting in SHP-2 Activation and PD-1-Mediated Inhibition." Blood 132, Supplement 1 (November 29, 2018): 862. http://dx.doi.org/10.1182/blood-2018-99-117486.
Full textAbstract:
Abstract Programmed cell death-1 (PD-1) is a checkpoint inhibitory receptor member of the B7-CD28 family, which promotes peripheral tolerance and restrains anti-viral and anti-tumor immunity. Although PD-1 blockade leads to durable clinical responses in a fraction of patients, the majority of patients display only transient responses, emphasizing the need for better understanding of the mechanism of PD-1-mediated T cell inhibition. In contrast to other CD28 family family members, which form disulfide-linked homodimers, PD-1 lacks the juxtamembrane cysteine residue responsible for homodimer formation and has been shown to exist as a monomer. The cytoplasmic tail of PD-1 has one immunoreceptor tyrosine-based inhibitory motif (ITIM), centered on Y223 residue, and one immunoreceptor tyrosine-based switch motif (ITSM), centered on Y248 residue. Mutational studies have shown that PD-1-mediated inhibition relies on the interaction of the ITSM with SHP-2 but the mechanism by which PD-1 induces SHP-2 activation is unknown. In this study we sought to determine how PD-1: SHP-2 interaction leads to inhibition of T-cell responses. SHP-2 contains a phosphatase (PTP) domain and two SH2 domains, N-SH2 and C-SH2. To determine whether PD-1 selectively interacts with a specific SH2 domain of SHP-2, we generated five different GST-fusion proteins in which GST was fused with either SHP-2 full length (FL), SHP-2-N-SH2, SHP-2-C-SH2, SHP-2-ΔN-SH2 (lacking the N-terminus SH2 domain) or SHP-2-PTP. Surprisingly, pull-down assays with GST-fusion proteins using lysates from primary human T cells or Jurkat T cell line revealed that PD-1 interacted with SHP-2 via both SH2 domains of SHP-2. Biacore assays confirmed that phosphorylated ITSM Y248 interacted with SHP-2 N-SH2 and C-SH2. To determine whether one of the SHP-2 SH2 domains might preferentially interact with PD-1 in live cells, we mutagenized the functional sites of the N-SH2 or C-SH2 domain at arginine R32 and R138, respectively, and transfected COS cells with cDNA of SHP-2 wild type or each SHP-2 SH2 mutant, together with PD-1 and the TCR proximal kinase Fyn, required for PD-1 phosphorylation and interaction with SHP-2. Immunoprecipitation and immunoblot assays showed that mutagenesis of either SH2 domain abrogated interaction of SHP-2 with PD-1 ITSM Y248, providing evidence that both SH2 domains of SHP-2 are involved in the interaction with PD-1. Because each PD-1 molecule has only one ITSM, these results indicate that SHP-2 interacts via its two SH2 domains with two PD-1 molecules. Assessment of PD-1: PD-1 dimer formation in live cells by split luciferase complementation, using NanoBiT proximity assays, showed that upon PD-1 phosphorylation, PD-1: PD1 interaction occurs only in the presence of SHP-2 with intact N-SH2 and C-SH2 domains. The SH2 domains of SHP-2 have a crucial and distinct role in regulating SHP-2 PTPase activity. In the absence of a tyrosine-phosphorylated binding ligand, N-SH2 is bound to the PTP domain leading to an auto-inhibitory closed conformation that blocks the PTP active site. Phosphorylation of Y542 in the SHP-2 C-terminus tail leads to intramolecular interaction of Y542 with the N-SH2 domain to relieve binding to PTP domain. Similarly, intermolecular interaction of the N-SH2 domain with specific phosphorylated ligands disrupts its PTP recognition surface reversing the auto-inhibitory conformation and activates the phosphatase. We determined that monomeric PD-1 ITIM-pY223 or ITSM-pY248 peptides did not activate the PTP. A dimeric phosphopeptide generated by covalent joining of two PD-1 ITSM-pY248 phosphopeptides with a linker that matches the distance between the binding sites of the two SHP-2 SH2 domains induced rapid activation of SHP-2. In contrast, similarly designed dimeric peptides joining either two PD-1 ITIM-pY223 or ITIM-pY223-and-ITSM-pY248 phosphopeptides did not activate PTP activity of SHP-2. The ability of PD1 ITSM-pY248 to induce SHP-2 activation was correlated with inhibition of antigen-mediated IL-2 production, which was abrogated when Y248 was mutagenized to phenylalanine. Our results reveal the geometry of PD-1: SHP-2 interaction that leads to SHP-2 activation and have implications for the development of PD-1-binding compounds to selectively suppress T cell responses by dimerizing PD-1 or enhance T cell responses by disrupting PD-1 dimerization and SHP-2 activation. Disclosures Freeman: EMD-Serono: Patents & Royalties; Xios: Membership on an entity's Board of Directors or advisory committees; Origimed: Membership on an entity's Board of Directors or advisory committees; Roche: Membership on an entity's Board of Directors or advisory committees; AstraZeneca: Patents & Royalties; Bristol-Myers-Squibb: Patents & Royalties; Bristol-Myers-Squibb: Membership on an entity's Board of Directors or advisory committees; Roche: Patents & Royalties; Dako: Patents & Royalties; Boehringer-Ingelheim: Patents & Royalties; Merck: Patents & Royalties; Novartis: Patents & Royalties.
19
Blanke, Mark S., and Thomas Abraham. "Leveraging Service Management to Achieve Sustainability Goals." International Journal of Information Systems and Social Change 5, no. 4 (October 2014): 58–72. http://dx.doi.org/10.4018/ijissc.2014100104.
Full textAbstract:
Information Technology can play a significant role in supporting and even driving sustainability strategies in an organization. However, many small and mid-size enterprises (SMEs) often separate their “Green IT” initiatives from existing business and IT strategy. The authors describe how one SME used IT service management (ITSM) to clarify and improve their IT services and to integrate sustainability into the IT function. Their case provides a detailed description of ITSM and also shows that ITSM offers a framework for SMEs to integrate sustainability into the IT operations.
20
Mora, Manuel, Jorge Marx Gomez, Rory V. O'Connor, Mahesh Raisinghani, and Ovsei Gelman. "An Extensive Review of IT Service Design in Seven International ITSM Processes Frameworks." International Journal of Information Technologies and Systems Approach 8, no. 1 (January 2015): 69–90. http://dx.doi.org/10.4018/ijitsa.2015010104.
Full textAbstract:
The main international IT Service Management processes frameworks (ITIL v2, ISO/IEC 20000, COBIT 4.0, CMMI-SVC, MOF 4.0, and ITUP) include the design of IT services as part of their main best practices. However, despite having a common purpose and conceptual structure, they are organized differently. Hence, ITSM academic researchers and practitioners need to integrate a broad and diverse literature in relation to these frameworks. In Part I of this research, the authors pursued the goal of a descriptive-comparative analysis of fundamental concepts and IT service architecture design models used in the seven ITSM frameworks. In this paper (Part II) we complete this systemic analysis by using the ISO/IEC 15288 systems engineering standard and focusing on the IT design processes and practices reported in the aforementioned ITSM frameworks. Specifically, CMMI-SVC and ITUP are assessed in overall as the strongest frameworks from an engineering view, MOF 4.0 and ITIL v3 as moderate, and ISO/IEC 20000, ITIL v2 and COBIT as the weakest. ITSM academicians and in particular practitioners thus will need to distinguish their utilization according to the level of required detail of the IT service design process. This paper aims to advance our comprehension and understanding on the state of the art regarding what are IT services and how they can be designed. Thus it is of broad significance to ITSM researchers and practitioners.
21
Blinnikova, A. V., and Ju O. Nesterova. "INCIDENT MANAGEMENT IN ITSM USING ARTIFICIAL INTELLIGENCE." Vestnik Universiteta, no. 6 (August 6, 2020): 36–40. http://dx.doi.org/10.26425/1816-4277-2020-6-36-40.
Full text
22
Conger, Sue, Ramesh Venkataraman, Alex Hernandez, and Jack Probst. "Market Potential for ITSM Graduates: A Survey." Information Systems Management 26, no. 2 (April 14, 2009): 176–81. http://dx.doi.org/10.1080/10580530902797573.
Full text
23
Mohammadi, Mohammad Mehrabioun, Ahad Zare Ravasan, and Homa Hamidi. "Investigating Critical Success Factors in Implementing ITIL Framework." International Journal of Standardization Research 13, no. 1 (January 2015): 74–91. http://dx.doi.org/10.4018/ijsr.2015010104.
Full textAbstract:
Nowadays, many organizations adopt Information Technology Service Management (ITSM) best practices to enhance their IT service related processes. Although many organizations have adopted ITSM frameworks such as Information Technology Infrastructure Library (ITIL), not all have been successful. Keeping this in mind, this paper seeks to identify Critical Success Factors (CSFs) that impact on successful implementation of ITSM frameworks with a focus on ITIL in Iranian organizations as a case of a developing country. Hence, based on a mixed method, at first, with the semi-structured interviews and literature review, 22 success factors were identified. Following that, a questionnaire was developed and sent out to domain experts. Next, robust Exploratory Factor Analysis (EFA) was run for analyzing data and establishing construct validity which finally classified critical success factors into five groups named as “organizational”, “human resources”, “project management”, “managerial” and “process”. The findings of this study have provided a very useful reference for IT standardization scholars and practitioners to identify the important issues of ITSM frameworks implementation projects in their research and practice.
24
Asrowardi, Imam, Septafiansyah Dwi Putra, Eko Subyantoro, and Norzaidi Haji Mohd Daud. "IT Service Management System Measurement using ISO20000-1 and ISO15504-8: Developing a Solution-Mediated Process Assessment Tool to Enable Transparent and SMS Process Assessment." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 5 (October 1, 2018): 4023. http://dx.doi.org/10.11591/ijece.v8i5.pp4023-4032.
Full textAbstract:
Information technology is about not only hardware, software, communication infrastructure and communication infrastructure but also how to manage services. Information technology plays an increasingly important role in developing the structure and functions of public and private sectors. Service measurement plays an important role in IT service management (ITSM) that is one of the subfields of Services Computing science. ITSM is a big part of service science, a science field that combines computer science, operation research engineering, business strategy, management science, and organizational theory. Performance measurement from each of IT services is absolutely needed and is important in the continuous development of ITSM. These research provide good technical knowledge about the measuring ITSM with some requirements. In this paper we suggest the metrics in each service processes enables organizations to predict a direction for active process enhancement and to identify if the goal of process can achieve. This objective process metrics based on ISO/IEC 15504-8 and PRM ISO/IEC 20000-4 refinement. The output of this research, in the form of metrics and tools for any type organizational use.
25
KISHKOVICH, Yurii P. "Stimulation and limits of cloud-based ITSM system application by Russian companies." Regional Economics: Theory and Practice 19, no. 10 (October 15, 2021): 2001–10. http://dx.doi.org/10.24891/re.19.10.2001.
Full textAbstract:
Subject. This article discusses the use of information systems in various spheres of the Russian economy. Objectives. The article aims to assess the prospects for the use of cloud-based ITSM systems by Russian medium-sized and large companies. Methods. For the study, I used a comparative analysis. Results. The article finds that the cloud-based ITSM system reduces the time of business processes significantly and saves money resources. Conclusions. The practical application of cloud-based ITSM systems expands the opportunities and capabilities of medium-sized and large enterprises significantly and contributes to improving the financial performance of their activities. The enterprise management system is an important factor the implementation of these systems depends on.
26
Galup, Stuart Diaz, Ronald Dattero, and Jing Quan. "The Compensation Benefit of ITIL® Skills and Certifications." International Journal of Service Science, Management, Engineering, and Technology 7, no. 2 (April 2016): 1–15. http://dx.doi.org/10.4018/ijssmet.2016040101.
Full textAbstract:
Information Technology Service Management (ITSM) is a quality management approach for managing IT services that meet business needs. The most broadly accepted ITSM framework is ITIL® (Mann, 2012) and its adoption by organizations across the globe has grown over the past decade. A study conducted by Forrester and itSMF (2013) found that IT service providers that employ ITIL® enjoy better service quality and higher operational productivity as well as cost savings. Therefore, IT professionals with ITIL® knowledge and skills are likely valuable to organizations and earn a higher wage than their peers. This paper investigates whether or not there are salary benefits for IT professionals that possess ITIL® knowledge and skill and what are the estimated benefits, if any. Using a human capital model and employing data from an on-line survey of a large set of IT professionals (16,632 responses) conducted at the end of 2013 this benefit is confirmed and quantified.
27
Serrano, João, João Faustino, Daniel Adriano, Rúben Pereira, and Miguel Mira da Silva. "An IT Service Management Literature Review: Challenges, Benefits, Opportunities and Implementation Practices." Information 12, no. 3 (March 5, 2021): 111. http://dx.doi.org/10.3390/info12030111.
Full textAbstract:
Information technology (IT) service management is considered a collection of frameworks that support organizations managing services. The implementation of these kinds of frameworks is constantly increasing in the IT service provider domain. The main objective is to define and manage IT services through its life cycle. However, from observing the literature, scarcely any research exists describing the main concepts of ITSM. Many organizations still struggle in several contexts in this domain, mainly during implementation. This research aims to develop a reference study detailing the main concepts related with ITSM. Thus, a systematic literature review is performed. In total, 47 articles were selected from top journals and conferences. The benefits, challenges, opportunities, and practices for ITSM implementation were extracted, critically analysed, and then discussed.
28
Hu, Chuan, Rongrong Wang, Fengjun Yan, Mohammed Chadli, Yanjun Huang, and Hong Wang. "Robust path-following control for a fully actuated marine surface vessel with composite nonlinear feedback." Transactions of the Institute of Measurement and Control 40, no. 12 (September 18, 2017): 3477–88. http://dx.doi.org/10.1177/0142331217727049.
Full textAbstract:
This paper presents a fast and accurate robust path-following control approach for a fully actuated marine surface vessel in the presence of external disturbances. The path following is realized by simultaneously converging the yaw rate and sway velocity to their respective desired values, which are generated according to the path-following demand. An improved combined control strategy using an integral terminal sliding mode (ITSM) based composite nonlinear feedback (CNF) technique considering the external disturbances, time-varying tracking reference, input saturations and transient performance improvement is proposed in this study. The proposed ITSM-CNF combines the advantages of the CNF control in improving the transient performance and of the ITSM control in guaranteeing good robustness and finite-time convergence. A continuous and smooth sliding mode controller, based on an integral nonsingular terminal sliding surface, is added to the CNF controller to eliminate chattering. The overall stability of the closed-loop system is strictly proved based on the Lyapunov method. Simulations verify the effectiveness of the ITSM-CNF controller in improving the transient path-following performance, inhibiting overshoots, eliminating steady-state errors, rejecting external disturbances and removing chattering effects, considering input saturations, varying path curvature and finite-time convergence.
29
Valiente, María-Cruz, Cristina Vicente-Chicote, and Daniel Rodríguez. "An Ontology-Based and Model-Driven Approach for Designing IT Service Management Systems." International Journal of Service Science, Management, Engineering, and Technology 2, no. 2 (April 2011): 65–81. http://dx.doi.org/10.4018/jssmet.2011040104.
Full textAbstract:
Currently, few projects applying a Model-Driven Engineering (MDE) approach start from high-level requirements models defined exclusively in terms of domain knowledge and business logic. Ontology Engineering (OE) aims to formalize and make explicit the knowledge related to a particular domain. In this vein, this paper presents a modeling approach, formalized in ontological terms, for defining high-level requirements models of software systems that provide support for the implementation of Information Technology Service Management Systems (ITSMSs). This approach allows for: (1) formalizing the knowledge associated to the ITSM processes contained in an ITSMS; (2) modeling the semantics of the activities associated to these processes in terms of workflows; (3) automatically generating the high-level requirements models of the workflow-based software systems needed to support (part of) the ITSM processes; and (4) from the latter, obtaining lower-level models (and eventually code) by means of automated model transformations. A real case study describing the use of this proposal to model an Incident Management System is also included to demonstrate the feasibility and the benefits of the proposed approach.
30
Silva, Miguel Mira Da, Ruben Pereira, and Jo�ão Faustino. "The Influence of DevOps Practices in ITSM Processes." International Journal of Services and Operations Management 1, no. 1 (2021): 1. http://dx.doi.org/10.1504/ijsom.2021.10038492.
Full text
31
Jain, Vipul, O. P. Wali, and V. Raveendra Saradhi. "Information Technology Service Management [ITSM] Research: A Literature Review of Practices, Solutions and Measurement." Asian Journal of Computer Science and Technology 7, no. 1 (May 5, 2018): 79–86. http://dx.doi.org/10.51983/ajcst-2018.7.1.1825.
Full textAbstract:
This is a systematic literature review to understand the adopted practices, proposed solutions and measurement models for Information Technology Service Management [ITSM] approaches. This paper extends the existing research and past literature reviews in this area by including recent published research from 2010 to 2018. The review finds that ITSM practices are not uniformly adopted, and some processes tend to be adopted more widely than others. The review also finds many measurement models that are either not validated, or only partially validated, and sees a gap between academic research and practitioner community, who are the primary intended users of these models and frameworks. There are proposed solutions for ITSM integration with other management systems that can benefit from further research for validation. We recommend future researchers to collaborate with practitioners, so that proposed models and frameworks can be incorporated into the relevant standards, where feasible.
32
Титарёв, Д. В., and С. О. Кривцанов. "ARCHITECTURE OF THE REPAIR AND MAINTENANCE MANAGEMENT SOFTWARE FOR A SERVICE ENTERPRISE." СИСТЕМЫ УПРАВЛЕНИЯ И ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ, no. 1(83) (March 10, 2021): 90–95. http://dx.doi.org/10.36622/vstu.2021.83.1.017.
Full textAbstract:
В работе изложен обзор архитектур для программного комплекса управления ремонтами и техническим обслуживанием для сервисных компаний. В рамках проведенной работы были изучены методологии EAM и ITSM, рассмотрены три различные архитектуры, приведены их описания, достоинства и недостатки. The paper provides an overview of the architectures for the repair and maintenance management software package for service companies. As part of the research work, the EAM and ITSM methodologies were studied, three different architectures were considered, their descriptions, advantages and disadvantages were given.
33
Sahid, Abdelkebir, Yassine Maleh, and Mustapha Belaissaoui. "A Practical Agile Framework for IT Service and Asset Management ITSM/ITAM Through a Case Study." Journal of Cases on Information Technology 20, no. 4 (October 2018): 71–92. http://dx.doi.org/10.4018/jcit.2018100105.
Full textAbstract:
Agile mode projects are increasingly popular among IT Department, including the most complex organizations. The deployment of agility on a larger scale fits over a long period because the motivations are part of a persistent setting. The deployment of large-scale agility is therefore based on a deep and lasting transformation of the organization. In order to support transformational business changes, IT must streamline the top-down process of new IT processes. The success of an IT service and asset management depends on innovation, agility, and efficiency to accompany the transformation of the organization from a traditional vision to a digital vision. The aim of this article is to propose a practical agile framework to improve IT service and asset management ITSM/ITAM processes through a case study in the organization. The finding will help organizations to assess their capabilities and to address the procedural, technical and human aspects of IT service and asset management.
34
Bozga, Liviu, and Marian Gheorghe. "Trends in ICT Service Management." Applied Mechanics and Materials 760 (May 2015): 715–20. http://dx.doi.org/10.4028/www.scientific.net/amm.760.715.
Full textAbstract:
The importance of information technology service management, ITSM, is fully recognized today. All companies, regardless of their size, accept the role of IT services and products, as the main supports for decision and control activities. The present contribution aims to analyze the main steps in the evolution of ITSM and its evolvement as a well-defined domain. There are analyzed, also, the main economical and technical factors influencing its evolution - the increase of competition among the IT service providers, the technical progress in hardware and availability of digital technologies.
35
Shi, Fu-Gui, and Zhen-Yu Xiu. "A New Approach to the Fuzzification of Convex Structures." Journal of Applied Mathematics 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/249183.
Full textAbstract:
A new approach to the fuzzification of convex structures is introduced. It is also called anM-fuzzifying convex structure. In the definition ofM-fuzzifying convex structure, each subset can be regarded as a convex set to some degree. AnM-fuzzifying convex structure can be characterized by means of itsM-fuzzifying closure operator. AnM-fuzzifying convex structure and itsM-fuzzifying closure operator are one-to-one corresponding. The concepts ofM-fuzzifying convexity preserving functions, substructures, disjoint sums, bases, subbases, joins, product, and quotient structures are presented and their fundamental properties are obtained inM-fuzzifying convex structure.
36
Galup, Stuart D., and Ronald Dattero. "A Five-Step Method to Tune Your ITSM Processes." Information Systems Management 27, no. 2 (April 9, 2010): 156–67. http://dx.doi.org/10.1080/10580531003685220.
Full text
37
Dávila, Abraham, Rosanna Janampa, Paula Angeleri, and Karin Melendez. "ITSM model for very small organisation: an empirical validation." IET Software 14, no. 2 (April 2020): 138–44. http://dx.doi.org/10.1049/iet-sen.2019.0034.
Full text
38
Minello, Italo Fernando, Estêvão Da Silva Marinho, and Rafaela Escobar Bürger. "PROCESSO DE INCUBAÇÃO COMO ESTIMULADOR DE INOVAÇÃO: UM ESTUDO COM EM-PRESAS INCUBADAS DE BASE TECNOLÓGICA." Revista Eletrônica de Estratégia & Negócios 10, no. 3 (April 11, 2018): 3. http://dx.doi.org/10.19177/reen.v10e320173-26.
Full textAbstract:
O presente trabalho teve como objetivo analisar o processo de incubação enquanto estimulador de inovação em empresas incubadas, na percepção de gestores que vivenciam este processo na ITSM. Para isto foram entrevistados oito gestores de negócios incubados. Os questionamentos abordaram a percepção dos gestores acerca do processo de incubação e seu papel enquanto estimulador de inovação. Para a análise utilizou-se a técnica de análise de conteúdo Bardin (2011). A partir da perspectiva dos incubados, a ITSM proporcionou oportunidades de desenvolvimento para os indivíduos, bem como para seus negócios, estimulando ações suas inovadoras por meio de um caráter experiencial.
39
Al-Hasani, Ali, Al-Rabeeah Al-Rabeeah, Santosh Kumar, and Andrew Eberhard. "An Improved CPU Time in Triangle Splitting Method for Solving a Biobjective Mixed Integer Program." International Journal of Mathematical, Engineering and Management Sciences 3, no. 4 (December 1, 2018): 351–64. http://dx.doi.org/10.33889/ijmems.2018.3.4-025.
Full textAbstract:
In this paper, an existing algorithm known as Triangle Splitting Method (TSM) for the Bi-Objective Mixed Integer Program (BOMIP) has been modified, which has been named “An Improved Triangle Splitting Method (ITSM)”. The TSM solves many unnecessary single objectives Mixed Integer Programs (MIP) to split each triangle with two rectangles, and second, it doesn’t find the all efficient frontiers. The proposed ITSM has resulted in redaction of CPU time by solving one MIP at each triangle and finds more number of nondominated frontiers compared to the TSM. The proposed modification has been tested in many instances.
40
Wei, Haibin, Ziqi Li, and Yubo Jiao. "Effects of Diatomite and SBS on Freeze-Thaw Resistance of Crumb Rubber Modified Asphalt Mixture." Advances in Materials Science and Engineering 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/7802035.
Full textAbstract:
Asphalt mixture is susceptible to moisture damage under the effect of freeze-thaw (F-T) cycles. In this paper, crumb rubber (CR) was used to modify stone mastic asphalt (SMA) and the effects of diatomite and styrene butadiene styrene (SBS) on antifreezing performances of crumb rubber modified SMA (CRSMA) were investigated. Regression analysis and modified grey model (MGM) were used to construct the prediction models for properties of modified mixtures. CRSMA, CR and diatomite modified SMA (CRDSMA), and CR and SBS modified SMA (CRSSMA) were prepared in laboratory, respectively. Process of F-T cycles was designed. Air void, indirect tensile strength (ITS), and indirect tensile stiffness modulus (ITSM) were measured to evaluate the antifreezing performances of CRSMA, CRDSMA, and CRSSMA. Results indicate that air voids increase with the increasing of F-T cycles. ITS and ITSM all decrease with the increasing of F-T cycles. The addition of diatomite and SBS can reduce the air void and improve the ITS and ITSM of CRSMA. CRSSMA presents the lowest air void, highest tensile strength, and largest stiffness modulus, which reveals that CRSSMA has the best F-T resistance among three different kinds of mixtures. Moreover, MGM (1, 2) models present more favorable accuracy in prediction of air void and ITS compared with regression ones.
41
Mao, Hongyi, Tao Zhang, and Qing Tang. "Research Framework for Determining How Artificial Intelligence Enables Information Technology Service Management for Business Model Resilience." Sustainability 13, no. 20 (October 18, 2021): 11496. http://dx.doi.org/10.3390/su132011496.
Full textAbstract:
Information technology service management (ITSM) driven by artificial intelligence (AI), i.e., AITSM, is likely to change business models and enterprise operations substantially, setting off a wave of enterprise AI transformation. Empowerment from AI has brought new vitality and challenges to ITSM capabilities, and enterprises must start thinking about how the capability of AITSM can be reactivated to shape the resilience of business models and meet survival needs in complex and ever-changing environments. To systematically achieve the development of enterprise business model resilience under AITSM, this study combines the actual situation of ITSM and enterprise AI transformation practice and then deconstruct it into three sub-research questions along the primary line of driver identification–model construction–paradigm optimization. We retrieve high-quality literature in the field of information systems from common databases and discuss the topics of AITSM and business model resilience. This study finds that future research should focus on forming an accurate description of the resilience demand of business models in the current era, and thus, better explain the value cocreation process between AITSM and business units. In addition, future research should emphasize the dynamic and strategic nature of business model resilience to study the continuous optimization of business models with the help of AITSM.
42
Chess, D. M., J. E. Hanson, J. A. Pershing, and S. R. White. "Prospects for simplifying ITSM-based management through self-managing resources." IBM Systems Journal 46, no. 3 (2007): 599–608. http://dx.doi.org/10.1147/sj.463.0599.
Full text
43
Ebrahimi, Hossein, and Seyedeh Melika Kharghani Moghadam. "An introduction to the industrial town’s safety management (ITSM) system." Work 70, no. 3 (November 26, 2021): 823–32. http://dx.doi.org/10.3233/wor-205327.
Full textAbstract:
BACKGROUND: In industrial towns, the dangers of each industry also poses a threat to other industries due to the proximity of different industries to each other. So there is a need for a safety management system. OBJECTIVE: This study was conducted to introduce a management system for managing the safety of industrial towns. METHOD: This cross-sectional and qualitative study was conducted in three main phases: (1) Identify the elements of the safety management systems using literature review, (2) screening and determining useful elements using Delphi technique and (3) determining the structure of safety management system. RESULTS: Participation of the industries and their compliance with the standards were considered as the system foundation. The networks of safety information of the industries, accident’s database, safety training, contractors, emergency management and management of the changes were placed on the foundation as the system columns. The Industrial Town’s Safety Management (ITSM) system as the system roof was placed on the columns. This structure was placed within a two-line framework including the trade secrets and program audit. CONCLUSIONS: The ITSM system consists of a set of factors that can help manage the safety of the industrial towns. This system will increase the safety level of industrial towns by incorporating some safety principles. However, the safety management of an industrial town is very complex and requires a great deal of efforts.
44
Mora, Manuel, Mahesh Raisinghani, Rory V. O'Connor, Jorge Marx Gomez, and Ovsei Gelman. "An Extensive Review of IT Service Design in Seven International ITSM Processes Frameworks." International Journal of Information Technologies and Systems Approach 7, no. 2 (July 2014): 83–107. http://dx.doi.org/10.4018/ijitsa.2014070105.
Full textAbstract:
An IT service design process is considered to be a fundamental piece of the seven key international IT Service Management (ITSM) processes frameworks (ITIL v2, ITIL v3 (and ITIL v2011), ISO 20000-4, CobIT 4.0, CMMI-SVC, MOF 4.0, and ITUP). Nevertheless the availability of IT service design processes, few –if any- descriptive-comparative studies among them have been reported. Thus, in this paper (Part I), we address this knowledge gap. An extensive descriptive-comparative review of seven IT service design processes in aforementioned frameworks is reported. Fundamental concepts (viz., design as noun, design as verb, service, service system, IT service, IT service system, and IT service architecture design) are analyzed by using a Systems Approach. Our findings indicate that the frameworks ITIL v2, ISO/IEC 20000 and Cobit 4.0 are using weak systemic concepts, while the frameworks ITIL v3, CMMI-SVC, ITUP and MOF 4.0 are more foundationally congruent with the new service systems view. Implications for ITSM theory and practice are discussed.
45
Vicente, Marco, Nelson Gama, and Miguel Mira da Silva. "A Business Motivation Model for IT Service Management." International Journal of Information System Modeling and Design 5, no. 1 (January 2014): 83–107. http://dx.doi.org/10.4018/ijismd.2014010104.
Full textAbstract:
The Enterprise Architecture (EA) approach usually considers a set of motivational concepts that are used to model the reasons and motivations that underlie the design and change of organizations, which corresponds to their Business Motivation Model (BMM). Likewise, this BMM is also present in organizations that provide IT services. However, although ITIL has become a standard for performing IT Service Management (ITSM), there is not one holistic solution to integrate EA and ITIL. Therefore, we propose to join both approaches through the definition of a specific Enterprise Architecture to design organizations according to ITIL's best practices to perform ITSM. Thus, this paper's goal is twofold: on one hand to establish that architecture's motivation model, and, on the other, to contribute for a formal identification and representation of the ITIL business motivation model itself.
46
Setyadi, Resad, and Enggar Priyatiningsih. "Maturity Level of ITSM Analysis Using ITIL V3 Framework in State Electricity Enterprise Purwokerto." JUITA: Jurnal Informatika 9, no. 1 (May 22, 2021): 77. http://dx.doi.org/10.30595/juita.v9i1.9594.
Full textAbstract:
In the industrialized world, information technology has become an essential component that everyone can feel and use. However, IT's proper use can provide opportunities for increased productivity and effective and efficient company processes. The quality of the service supplied is related to managing the problems faced and handling its day-to-day service operations. The purpose of this research is to analyze the IT service management (ITSM) of the National Electricity Company (NEC) in Purwokerto with media analysis using the Information Technology Infrastructure Library (ITIL) v3 framework. The method used is a quantitative method with observation, distribution of questionnaires, and data analysis as a follow-up. Maturity level analysis becomes the target of assessment to become a reference for providing recommendations for the performance of ITSM. The results of the maturity level show that NEC Purwokerto is at the optimal level. The advice given is that NEC Purwokerto maintains IT services' performance so that the NEC Purwokerto company's business strategy continues to run well and improve
47
Allahdadi, Mehdi, and Chongyang Deng. "An improved three-step method for solving the interval linear programming problems." Yugoslav Journal of Operations Research 28, no. 4 (2018): 435–51. http://dx.doi.org/10.2298/yjor180117020a.
Full textAbstract:
Feasibility condition, which ensures that the solution space does not violate any constraints, and optimality condition, which guarantees that all points of the solution space are optimal, are very significant conditions for the solution space of interval linear programming (ILP) problems. Among the existing methods for ILP problems, the best-worst cases (BWC) method and two-step method (TSM) do not ensure feasibility condition, while the modified ILP (MILP), robust TSM (RTSM), improved TSM (ITSM), and three-step method (ThSM) guarantee feasibility condition, whose solution spaces may not be completely optimal. We propose an improved ThSM (IThSM) for ILP problems, which ensures both feasibility and optimality conditions, i.e., we introduce an extra step to optimality.
48
Asif, Muhammad, Muhammad Junaid Khan, and Attaullah Y. Memon. "Integral terminal sliding mode formation control of non-holonomic robots using leader follower approach." Robotica 35, no. 7 (May 12, 2016): 1473–87. http://dx.doi.org/10.1017/s0263574716000230.
Full textAbstract:
SUMMARYMulti-robot formation control has become an important area of research due to its advantages and applications. This paper presents multi-robot formation control using a leader–follower approach without considering the leader's velocity information or estimation. The leader–follower formation is formulated by incorporating the model uncertainties and disturbances. A novel formation controller is presented using integral terminal sliding mode (ITSM) control, which drives the formation tracking error convergence to zero in finite-time. The stability of the close-loop control scheme is verified by using Lyapunov theory. Furthermore, obstacle detection and avoidance are incorporated to avoid collision while maintaining the formation. The effectiveness of the proposed controller is verified and validated using sine and lamniscate curve trajectories. Moreover, the performance of the proposed ITSM formation controller is compared with the standard linear sliding mode (LSM) control.
49
Woo, Hanchul, Sangdo Lee, Jun-Ho Huh, and Sukjae Jeong. "Impact of ITSM Military Service Quality and Value on Service Trust." Journal of Multimedia Information System 7, no. 1 (March 31, 2020): 55–72. http://dx.doi.org/10.33851/jmis.2020.7.1.55.
Full text
50
Arabalidousti, Fatemeh, Ramin Nasiri, and Mahsa razavi Davoudi. "Developing a New Architecture to Improve ITSM on Cloud Computing Environment." International Journal on Cloud Computing: Services and Architecture 4, no. 1 (February 28, 2014): 11–31. http://dx.doi.org/10.5121/ijccsa.2014.4102.
Full text