Rozprawy doktorskie na temat „Multi-process service”

Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, Engineering Systems Division, February 2014.
Cataloged from PDF version of thesis. "December 2013."
Includes bibliographical references (page 75).
Keeping up with the Joneses, in an Information Technology (IT) sense, is not a feel good activity, it's a necessity to remain competitive. Building and maintaining a relevant, reliable, and scalable IT service infrastructures, without crushing the bottom line, is a necessary undertaking to avoid obsolescence in the marketplace. This is particularly true for very large scale IT Service and "Cloud" providers. At the very top of many CIO's wish list is to obtain, or create, an effective and efficient IT Process Automation (ITPA) framework. Use of ITPA or Run Book automation is a requirement to efficiently manage increasingly massive pools of systems and services under any particular IT Service Provider's management domain. A successful process workflow, run book, automation, and orchestration framework implementation requires a high degree of flexibility and scalability to be successful. It also requires an intuitive command and control structure to manage today's massive scale deployments and their increasingly demanding customers and service level agreements. This paper explores a new applications of a "publish-subscribe" messaging paradigm and how it can be leveraged to construct a core ITPA framework. This ITPA framework will scale to match the various needs of very large IT service infrastructures. The overarching intent of the paper is to discuss this ITPA framework, at a level of detail sufficient enough to provide a well-trained IT practitioner the ability to construct it themselves within their organization. This paper is however abstract enough to give the practitioner a high degree of choice with regards to the specific technologies and implementation details that must ultimately be tailored to their organization's specific needs and requirements.
by Scott E. Albrecht.
S.M. in Engineering and Management

Work process knowledge (WPK) is a concept for systems-level knowledge of the workplace and has been shown to be most important in organisations requiring multi-functional working. Most of the previous body of knowledge on WPK has focussed mainly on manufacturing industries; there has been less investigation of WPK in the service sector and none in the visitor attraction (VA) industry, an important employer in Scotland. The VA industry is extremely dynamic and many businesses are rapidly moving towards multi-functional team working, driven by an urgent need to develop quality, customer-focussed strategies to survive in an over-supplied and very competitive market. This study identifies the nature of WPK in Scottish VAs, what relationship WPK has to customer service, how WPK in this service sector differs from selected published studies in manufacturing and other service sector contexts and what factors affect the development of WPK in VAs. Following recruitment of a number of VAs using an online questionnaire and subsequent site visits, six sites were selected for case study, on the basis that they demonstrated most evidence of multi-functional working and staff with developed WPK. The research design was comparative case studies of the work processes and knowledge within these six VAs, based on a social constructivist framework, using the methods of key informant interviews and shadowing. Although these six sites represent a cross-spread of attractions in terms of types, location and size, they nonetheless show strong similarities in their basic business structure. The data show that WPK is an essential element of workers’ roles and a vital requirement in providing good customer service. Although VA managers do not use the term ‘work process knowledge’, they nonetheless recognise the importance of having staff with a wider view of their business and are actively encouraging its rapid development. Multi-functionality and job rotation are main ways of developing WPK but sites also use key workers with job roles that help develop high levels of WPK, who are then used as a staff resource. The main factor contributing to the development of WPK is communication, especially of systems-level information. Cultural information-sharing is an essential pre-condition for the development of WPK in this context. Other determining factors are flexibility, employee biographies, seasonality issues, how weddings and functions are handled on-site and the size and complexity of the site. WPK is the foundation on which good customer service is based and elements of it deliver customer service. It is the closely integrated nature of the employee-customer relationship that has such a profound effect on WPK development in this service sector industry and is essentially what differentiates it from previously published studies. The identification of the customer as a hitherto unrecognised key driver of WPK is the most important contribution to knowledge made by this work.

Thesis (M.S.)--Kutztown University of Pennsylvania, 1999.
Source: Masters Abstracts International, Volume: 45-06, page: 2809. Typescript. Abstract precedes thesis as 2 preliminary leaves. Includes bibliographical references (leaves 55-56).

Pour faire face à la croissance rapide du trafic mobile, différentes technologies d'accès radio (par exemple, HSPA, LTE, WiFi, et WiMAX) sont intégrées et gérées conjointement. Dans ce contexte, la sélection de TAR est une fonction clé pour améliorer les performances du réseau et l'expérience de l'utilisateur. Elle consiste à décider quelle TAR est la plus appropriée aux mobiles. Quand l'intelligence est poussée à la périphérie du réseau, les mobiles décident de manière autonome de leur meilleur TAR. Ils cherchent à maximiser égoïstement leur utilité. Toutefois, puisque les mobiles ne disposent d'aucune information sur les conditions de charge du réseau, leurs décisions peuvent conduire à une inefficacité de la performance. En outre, déléguer les décisions au réseau optimise la performance globale, mais au prix d'une augmentation de la complexité du réseau, des charges de signalisation et de traitement. Dans cette thèse, au lieu de favoriser une de ces deux approches décisionnelles, nous proposons un cadre de décision hybride: le réseau fournit des informations pour les mobiles pour mieux décider de leur TAR. Plus précisément, les utilisateurs mobiles choisissent leur TAR en fonction de leurs besoins et préférences individuelles, ainsi que des paramètres de coût monétaire et de QoS signalés par le réseau. En ajustant convenablement les informations du réseau, les décisions des utilisateurs répondent globalement aux objectifs de l'opérateur. Nous introduisons d'abord notre cadre de décision hybride. Afin de maximiser l'expérience de l'utilisateur, nous présentons une méthode de décision multicritère (MDMC) basée sur la satisfaction. Outre leurs conditions radio, les utilisateurs mobiles tiennent compte des paramètres de coût et de QoS, signalées par le réseau, pour évaluer les TAR disponibles. En comparaison avec les solutions existantes, notre algorithme répond aux besoins de l'utilisateur (par exemple, les demandes en débit, la tolérance de coût, la classe de trafic), et évite les décisions inadéquates. Une attention particulière est ensuite portée au réseau pour s'assurer qu'il diffuse des informations décisionnelles appropriées, afin de mieux exploiter ses ressources radio alors que les mobiles maximisent leur propre utilité. Nous présentons deux méthodes heuristiques pour dériver dynamiquement quoi signaler aux mobiles. Puisque les paramètres de QoS sont modulées en fonction des conditions de charge, l'exploitation des ressources radio s'est avérée efficace. Aussi, nous nous concentrons sur l'optimisation de l'information du réseau. La dérivation des paramètres de QoS est formulée comme un processus de décision semi-markovien, et les stratégies optimales sont calculées en utilisant l'algorithme de Policy Iteration. En outre, et puisque les paramètres du réseau ne peuvent pas être facilement obtenues, une approche par apprentissage par renforcement est introduite pour dériver quoi signaler aux mobiles
To cope with the rapid growth of mobile broadband traffic, various radio access technologies (e.g., HSPA, LTE, WiFi, and WiMAX) are being integrated and jointly managed. Radio Access Technology (RAT) selection, devoted to decide to what RAT mobiles should connect, is a key functionality to improve network performance and user experience. When intelligence is pushed to the network edge, mobiles make autonomous decisions regarding selection of their most appropriate RAT. They aim to selfishly maximize their utility. However, because mobiles have no information on network load conditions, their decisions may lead to performance inefficiency. Moreover, delegating decisions to the network optimizes overall performance, but at the cost of increased network complexity, signaling, and processing load. In this thesis, instead of favoring either of these decision-making approaches, we propose a hybrid decision framework: the network provides information for the mobiles to make robust RAT selections. More precisely, mobile users select their RAT depending on their individual needs and preferences, as well as on the monetary cost and QoS parameters signaled by the network. By appropriately tuning network information, user decisions are globally expected to meet operator objectives, avoiding undesirable network states. We first introduce our hybrid decision framework. Decision makings, on the network and user sides, are investigated. To maximize user experience, we present a satisfaction-based Multi-Criteria Decision-Making (MCDM) method. In addition to their radio conditions, mobile users consider the cost and QoS parameters, signaled by the network, to evaluate serving RATs. In comparison with existing MCDM solutions, our algorithm meets user needs (e.g., traffic class, throughput demand, cost tolerance), avoiding inadequate decisions. A particular attention is then addressed to the network to make sure it broadcasts suitable decisional information, so as to better exploit its radio resources while mobiles maximize their own utility. We present two heuristic methods to dynamically derive what to signal to mobiles. While QoS parameters are modulated as a function of the load conditions, radio resources are shown to be efficiently exploited. Moreover, we focus on optimizing network information. Deriving QoS parameters is formulated as a semi-Markov decision process, and optimal policies are computed using the Policy Iteration algorithm. Also, and since network parameters may not be easily obtained, a reinforcement learning approach is introduced to derive what to signal to mobiles. The performances of optimal, learning-based, and heuristic policies are analyzed. When thresholds are pertinently set, our heuristic method provides performance very close to the optimal solution. Moreover, although lower performances are observed, our learning-based algorithm has the crucial advantage of requiring no prior parameterization

Market globalization and mass customization requirements are forcing companies towards automation of their product development processes. Many task-specific software solutions provide localized automation. Coordinating these local solutions to automate higher-level processes requires significant software maintenance costs due to the incompatibility of the software tools and the dynamic nature of the product development environment. Current automation methods do not provide the required level of flexibility to operate in this dynamic environment. An autonomic product development process automation strategy is proposed in order to provide a flexible, standardized approach to product development process automation and to significantly reduce the software maintenance costs associated with traditional automation methods. Key elements of the strategy include a formal approach to decompose product development processes into services, a method to describe functional and quality attributes of services, a process modeling algorithm to configure processes composed of services, a method to evaluate process utility based on quality metrics and user preferences, and an implementation that allows a user to instantiate the optimal process. Because the framework allows a user to rapidly reconfigure and select optimal processes as new services are introduced or as requirements change, the framework should reduce burdensome software maintenance costs associated with traditional automation methods and provide a more flexible approach.

There is still very little known about network dynamics (Bell et al., 2006), especially when focusing on interorganisational networks (Provan et al., 2007). There is also limited empirical evidence on leadership within these complex network contexts (Davenport, 2005; Osborn et al., 2002). This thesis addresses these limitations by developing a theoretical framework for process leadership in the complex, often unpredictable and turbulent context of the interorganisational networked ecosystem. Understanding the complexity of networks and leadership is crucial to advancing network research, which this study aims to accomplish. Although previous studies indicate leader characteristics and behaviours (Huxham & Vangen, 2000), less evidence on the processes and dynamics of leadership within networks exists. Few studies have longitudinally examined the multiple boundaries and multi-level interactions within a complex interorganisational network, as the unit of analysis, as this thesis achieves. Moreover, little research has been conducted to understand network leadership processes, which represents a major gap in the network theory and complexity leadership literatures. In order to address these gaps as well as the gap between the two literatures, this thesis presents a comprehensive, longitudinal case investigation of network process leadership (NPL) within an interorganisational network embedded in the British National Health Service (NHS). By analysing processual dynamics, this thesis’s contribution is the foundation of a preliminary NPL framework. Based on analysing a public sector healthcare network over time, the findings emphasise four dominant thematic constructs surrounding NPL that emerged as highly significant: leveraging strategic system stressors and turbulence; adopting focal and non-focal roles; maximising social proximity; and the complementary, reciprocal formal and informal coproduction of leadership. These constructs provide the empirical and analytical grounds to help explain the critical leadership processes that drive a complex, interorganisational public sector network. Significantly, social capital dimensions underlie these interrelated higher order themes; thereby affecting wider inter-organisational network processes. As a primary contribution of this thesis, I argue that social capital is the critical concept linking network and complexity leadership theories, in order to provide a better understanding of NPL. The findings suggest network leadership calls for NPL and its relational, collective, facilitative approach involving social capital among multiple participants in a complex interorganisational network context. This is highly differentiated from studying unidirectional effects of a hierarchical, central leader within a single organisation. Theoretically, I argue the importance of social capital in the complex nature of leadership processes within interorganisational networked contexts. The research contributes to an understanding of how networks and social capital can be adapted or created by formal and informal leaders within networks to reflect changing processes to shape practices and network-wide development over time. Finally, I offer several operational mechanisms policymakers and network leaders could pragmatically employ to manage, lead, and facilitate interorganisational network processes. Overall, the significance of this study involves: filling gaps in the literature, offering a longitudinal case study on an interorganisational network over time, providing a foundation for theoretical development on leading in networks, illuminating insights into professional leadership within networks, and identifying policy and practical implications for leaders and managers.

Face aux changements globaux, au déclin de la biodiversité et à l'augmentation de la population urbaine, la demande des professionnels de la construction pour intégrer la biodiversité dans leurs pratiques est de plus en plus forte. Ma thèse a eu pour objectif de (1) faire un état des lieux de la prise en compte de la biodiversité dans les aménagements urbains et (2) développer de nouveaux outils afin d'aider les aménageurs à améliorer leurs pratiques. Dans une première partie consacrée au bilan biodiversité, (1) nous avons émis des doutes quant à la pertinence de l'utilisation des toitures végétalisées, telles qu'elles sont conçues actuellement, en tant qu'éléments intégrés à un réseau écologique ; (2) l'étude des mesures environnementales mises en place dans 54 éco‐quartiers européens (principalement en France) a montré que les concepteurs se préoccupaient principalement des bénéfices environnementaux en termes d'énergie, de transport, de déchets et d'eau, et plus rarement de biodiversité ; (3) l'ACV (analyse du cycle de vie), un outil fréquemment utilisés par les aménageurs pour calculer les impacts environnementaux d'un produit (toit vert, bâtiment, quartier) intègre mal la biodiversité dans ses calculs, et son utilisation pour comparer différents éléments verts pourrait uniformiser les pratiques et ainsi conduire à une homogénéisation de la biodiversité et à l'altération du fonctionnement de l'écosystème. Pour aider les aménageurs à mieux considérer la biodiversité dans leurs pratiques, nous avons participé à l'amélioration de l'outil Profil-Biodiversité créé par Frank Derrien et développé notre propre outil (BioDi(v)Strict) basé sur la diversité des habitats et la présence de quatre groupes d'espèces bio-indicatrices afin de traduire au mieux la dynamique écologique d'un site. Ces deux outils ont été appliqués sur un site pilote : la Cité Descartes (à Noisy-le- Grand et Champs-sur-Marne). Dans le but de faire émerger une prise de conscience des différents acteurs locaux sur la nécessité de préserver la biodiversité et les services écosystémiques associés, nous avons développé un outil de concertation pour l'aménagement du territoire (NewDistrict), basé sur une modélisation d'un système multi-agents (SMA) et d'un jeu de rôles autour de l'étalement urbain et ses conséquences environnementales.

No abstract
Coastal and marine ecosystems are some of the most heavily exploited with increasing degradation. This alarming situation appeals for urgent and effective actions. The optimal balance between use and conservation of ecosystems theoretically requires all costs and benefits to be considered in decision-making, including intangible costs and benefits such as non-market use and non-use values. The broad aim of this PhD is to examine how these economic values associated with coastal and marine ecosystem services can be measured, and how the economic valuation exercise may be considered and influence management decision- making.The first analytical part of the thesis focuses on assessing non-market use and non-use values, through econometric methods. The characterization and estimation of non-use values are complex and controversial, especially when the valuation exercise is focusing on individuals who are users of the ecosystem services being considered. An original approach based on a stated preference method, namely choice experiments, is developed then empirically applied in quantifying non-market values for marine and coastal ecosystems in two areas in New Caledonia. It allows the estimation of non-use values for populations of users in an implicit way. An in-depth analysis of the individuals’ choice heuristics during the valuation exercise is also conducted, with a focus on payment non-attendance. This issue is dealt with by comparing multiple modelling approaches in terms of: (1) inferred attendance, in relation to stated attendance; (2) attendance distribution according to several socio-economic variables; and (3) welfare estimates.After noting that the potential influence of economic valuation in decision making is unclear and largely unexplored in the literature, the second major component of this PhD aims to examine if, how and to what extent the economic valuation of ecosystem services, including measures of non-market values, influence decision-making regarding coastal and marine ecosystems management in Australia. Based on two nation-wide surveys, the perceived usefulness of the economic valuation of ecosystem services by the general public and decision-makers is studied, and the reasons why decision-makers may or may not fully consider economic values are elicited. Using a multi-criteria analysis, a part of the surveys also aims at examining the relative importance of different evaluation criteria (ecological, social and economic) when assessing the consequences of a hypothetical coastal development project on commercial activities, recreational activities and marine biodiversity

Il lavoro è stato suddiviso in tre macro-aree. Una prima riguardante un'analisi teorica di come funzionano le intrusioni, di quali software vengono utilizzati per compierle, e di come proteggersi (usando i dispositivi che in termine generico si possono riconoscere come i firewall). Una seconda macro-area che analizza un'intrusione avvenuta dall'esterno verso dei server sensibili di una rete LAN. Questa analisi viene condotta sui file catturati dalle due interfacce di rete configurate in modalità promiscua su una sonda presente nella LAN. Le interfacce sono due per potersi interfacciare a due segmenti di LAN aventi due maschere di sotto-rete differenti. L'attacco viene analizzato mediante vari software. Si può infatti definire una terza parte del lavoro, la parte dove vengono analizzati i file catturati dalle due interfacce con i software che prima si occupano di analizzare i dati di contenuto completo, come Wireshark, poi dei software che si occupano di analizzare i dati di sessione che sono stati trattati con Argus, e infine i dati di tipo statistico che sono stati trattati con Ntop. Il penultimo capitolo, quello prima delle conclusioni, invece tratta l'installazione di Nagios, e la sua configurazione per il monitoraggio attraverso plugin dello spazio di disco rimanente su una macchina agent remota, e sui servizi MySql e DNS. Ovviamente Nagios può essere configurato per monitorare ogni tipo di servizio offerto sulla rete.

La present tesi doctoral s’ha centrat en el repte d’aconseguir, mitjançant Fabricació Additiva (FA), models per a assaig quirúrgic, sota la premissa que els equips per fer-los haurien de ser accessibles a l’àmbit hospitalari. L’objectiu és facilitar l’extensió de l’ús dels prototips com a eina de preparació d’operacions quirúrgiques, transformant la pràctica mèdica actual de la mateixa manera que en el seu moment ho van fer tecnologies com les que van facilitar l’ús de radiografies. El motiu d’utilitzar FA, en lloc de tecnologies més tradicionals, és la seva capacitat de materialitzar de forma directa les dades digitals obtingudes de l’anatomia del pacient mitjançant sistemes d’escanejat tridimensional, fent possible l’obtenció de models personalitzats. Els resultats es centren en la generació de nou coneixement sobre com aconseguir equipaments d’impressió 3D multimaterials accessibles que permetin l’obtenció de models mimètics respecte als teixits vius. Per facilitar aquesta buscada extensió de la tecnologia, s’ha focalitzat en les tecnologies de codi obert com la Fabricació per Filament Fos (FFF) i similars basades en líquids catalitzables. La recerca s’alinea dins l’activitat de desenvolupament de la FA al CIM UPC, i en aquest àmbit concret amb la col·laboració amb l’Hospital Sant Joan de Déu de Barcelona (HSJD). El primer bloc de la tesi inclou la descripció de l’estat de l’art, detallant les tecnologies existents i la seva aplicació a l’entorn mèdic. S’han establert per primer cop unes bases de caracterització dels teixits vius -sobretot tous- per donar suport a la selecció de materials que els puguin mimetitzar en un procés de FA, a efectes de millorar l’experiència d’assaig dels cirurgians. El caràcter rígid dels materials majoritàriament usats en impressió 3D els fa poc útils per simular tumors i altres referències anatòmiques. De forma successiva, es tracten paràmetres com la densitat, la viscoelasticitat, la caracterització dels materials tous a la indústria, l’estudi del mòdul elàstic de teixits tous i vasos, la duresa d’aquests, i requeriments com l’esterilització dels models. El segon bloc comença explorant la impressió 3D mitjançant FFF. Es classifiquen les variants del procés des del punt de vista de la multimaterialitat, essencial per fer models d’assaig quirúrgic, diferenciant entre solucions multibroquet i de barreja al capçal. S’ha inclòs l’estudi de materials (filaments i líquids) que serien més útils per mimetitzar teixits tous. Es constata com en els líquids, en comparació amb els filaments, la complexitat del treball en processos de FA és més elevada, i es determinen formes d’imprimir materials molt tous. Per acabar, s’exposen sis casos reals de col·laboració amb l’HJSD, una selecció d’aquells en els que el doctorand ha intervingut en els darrers anys. L’origen es troba en la dificultat de l’abordatge d’operacions de resecció de tumors infantils com el neuroblastoma, i a la iniciativa del Dr. Lucas Krauel. Finalment, el Bloc 3 té per objecte explorar nombrosos conceptes (fins a 8), activitat completada al llarg dels darrers cinc anys amb el suport dels mitjans del CIM UPC i de l’activitat associada a treballs finals d’estudis d’estudiants de la UPC, arribant-se a materialitzar equipaments experimentals per validar-los. La recerca ampla i sistemàtica al respecte fa que s’estigui més a prop de disposar d’una solució d’impressió 3D multimaterial de sobretaula. Es determina que la millor via de progrés és la de disposar d’una pluralitat de capçals independents a fi de capacitar la impressora 3D per integrar diversos conceptes estudiats, materialitzant-se una possible solució. Cloent la tesi, es planteja com seria un equipament d’impressió 3D per a models d’assaig quirúrgic, a fi de servir de base per a futurs desenvolupaments.
La presente tesis doctoral se ha centrado en el reto de conseguir, mediante Fabricación Aditiva (FA), modelos para ensayo quirúrgico, bajo la premisa que los equipos para obtenerlos tendrían que ser accesibles al ámbito hospitalario. El objetivo es facilitar la extensión del uso de modelos como herramienta de preparación de operaciones quirúrgicas, transformando la práctica médica actual de la misma manera que, en su momento, lo hicieron tecnologías como las que facilitaron el uso de radiografías. El motivo de utilizar FA, en lugar de tecnologías más tradicionales, es su capacidad de materializar de forma directa los datos digitales obtenidos de la anatomía del paciente mediante sistemas de escaneado tridimensional, haciendo posible la obtención de modelos personalizados. Los resultados se centran en la generación de nuevo conocimiento para conseguir equipamientos de impresión 3D multimateriales accesibles que permitan la obtención de modelos miméticos respecto a los tejidos vivos. Para facilitar la buscada extensión de la tecnología, se ha focalizado en las tecnologías de código abierto como la Fabricación por Hilo Fundido (FFF) y similares basadas en líquidos catalizables. Esta investigación se alinea dentro de la actividad de desarrollo de la FA en el CIM UPC, y en este ámbito concreto con la colaboración con el Hospital Sant Joan de Déu de Barcelona (HSJD). El primer bloque de la tesis incluye la descripción del estado del arte, detallando las tecnologías existentes y su aplicación al entorno médico. Se han establecido por primera vez unas bases de caracterización de los tejidos vivos – principalmente blandos – para dar apoyo a la selección de materiales que los puedan mimetizar en un proceso de FA, a efectos de mejorar la experiencia de ensayo de los cirujanos. El carácter rígido de los materiales mayoritariamente usados en impresión 3D los hace poco útiles para simular tumores y otras referencias anatómicas. De forma sucesiva, se tratan parámetros como la densidad, la viscoelasticidad, la caracterización de materiales blandos en la industria, el estudio del módulo elástico de tejidos blandos y vasos, la dureza de los mismos, y requerimientos como la esterilización de los modelos. El segundo bloque empieza explorando la impresión 3D mediante FFF. Se clasifican las variantes del proceso desde el punto de vista de la multimaterialidad, esencial para hacer modelos de ensayo quirúrgico, diferenciando entre soluciones multiboquilla y de mezcla en el cabezal. Se ha incluido el estudio de materiales (filamentos y líquidos) que serían más útiles para mimetizar tejidos blandos. Se constata como en los líquidos, en comparación con los filamentos, la complejidad del trabajo en procesos de FA es más elevada, y se determinan formas de imprimir materiales muy blandos. Para acabar, se exponen seis casos reales de colaboración con el HJSD, una selección de aquellos en los que el doctorando ha intervenido en los últimos años. El origen se encuentra en la dificultad del abordaje de operaciones de resección de tumores infantiles como el neuroblastoma, y en la iniciativa del Dr. Lucas Krauel. Finalmente, el Bloque 3 desarrolla numerosos conceptos (hasta 8), actividad completada a lo largo de los últimos cinco años con el apoyo de los medios del CIM UPC y de la actividad asociada a trabajos finales de estudios de estudiantes de la UPC, llegándose a materializar equipamientos experimentales para validarlos. La investigación amplia y sistemática al respecto hace que se esté más cerca de disponer de una solución de impresión 3D multimaterial de sobremesa. Se determina que la mejor vía de progreso es la de disponer de una pluralidad de cabezales independientes, a fin de capacitar la impresora 3D para integrar diversos conceptos estudiados, materializándose una posible solución. Para cerrar la tesis, se plantea cómo sería un equipamiento de impresión 3D para modelos de ensayo quirúrgico, a fin de servir de base para futuros desarrollos.

碩士
國立中央大學
資訊管理學系碩士在職專班
93
The outsourcing service providers (OSPs) are facing unique challenges and strong competition in the bidding process, while addressing client’s various demands, ever-increasing specialization and complexity in domain knowledge, and the shortening of the bid preparation process. How to employ knowledge management (KM) approach to prepare the bid efficiently and deliver the right solutions to clients to gain bidding advantages become the primary concerns of OSPs. This research is to study how the KM approach can facilitate the competitive advantages of the OSP in the bidding process. Data are collected from three e-service and system integration business units of two multi-national enterprises using semi-structured in-depth interviews. The results show that KM does have a significant impact on the time allocation and core tasks of the bid preparation processes, and particularly true for the OSP with KM systems. Findings also reveal that implementing the KM systems and establishing the key performance indicators of knowledge sharing can improve the OSP’s competitive advantage in the bidding process. We accordingly propose four propositions for further research in outsourcing and knowledge management.

碩士
元智大學
經營管理碩士班(企業管理與服務科學學程)
100
With the development of economic growth and trends in past two decades, the industrial structure of countries around the world have been a significant change from an agricultural society, industrial society, knowledge economy, now is turning into the era of the “Service Economy”. In other words, service-oriented economic and social patterns become the most important elements of economic growth in the most developing countries or developed countries. As the boundary between manufacturing and service industries become more and more fuzzy, the major countries such as USA, Japan and Europe start pay more attention to the issues of manufacturing ”Servitization” or products ”Servitization”. For related machinery, equipment manufacturers, the competition become more intense in the market, almost all manufacturers have to face a more rapid communication, the plight of the price pressure (Gebauer, Fleisch, &; Friedli, 2005). In order to respond to declining profits from the products by manufacturers and began to do an extension to the service. It is serving as an extra to generate profits and revenue sources. Therefore, companies start thinking about how to shift from product manufacturing to be services provides. In the meanwhile, related literature on how to development of new services is still relatively incomplete, and far less than new product development at this stage (Johne &; Storey, 1998; Menor, Tatikonda, &; Sampson, 2002; Sundbo, 1997b). Compared to physical products, services often lack a complete design and development (Froehle, Roth, Chase, &; Voss, 2000).From the literature review, literature of new service development is develop based on the already developed new product development framework and results. Due to the different characteristics of physical products and services, a main difference is customer interaction plays an important role in the service process. Therefore, new product development can not be directly applied to the new services development. For the manufacturing sector, there have number of applications for new product development tools, the stage - gate system as one of the widely-used tool. Therefore, the main research question of this study is” how the stage - gate system applied to new service development process? " This study by literature review generalize three main themes, including servitization, related issue of new service development and related issue of stage-gate system. And then it developed the theoretical tool of the “Stage - gate system of new service development ". This study adopts a holistic case study method to select the three servitization manufacturers in Taiwan, and in-depth interviews to collect relevant information. Through the multi-case studies to validate this “Stage - gate system of new service development” is operability and applicability. And we also use the result of multi-case studies and cross-comparison and analysis to repeat revise the “Stage - gate system of new service development”, and finally propose a generalized model of “Stage - gate system of new service development”.

GPUs are now commonly available in most modern computing platforms. They are increasingly being adopted in cloud platforms and data centers due to their immense computing capability. In response to this growth in usage, manufacturers are continuously trying to improve GPU hardware by adding new features. However, this increase in usage and the addition of utility-improving features can create new, unexpected attack channels. In this thesis, we show that two such features—unified virtual memory (UVM) and multi-process service (MPS)—primarily introduced to improve the programmability and efficiency of GPU kernels have an unexpected consequence—that of creating a novel covert timing channel via the GPU’s translation lookaside buffer (TLB) hierarchy. To enable this covert channel, we first perform experiments to understand the characteristics of TLBs present on a GPU. The use of UVM allows fine-grained management of translations, and helps us discover several idiosyncrasies of the TLB hierarchy, such as three-levels of TLB, coalesced entries. We use this newly-acquired understanding to demonstrate a novel covert channel via the shared TLB. We then leverage MPS to increase the bandwidth of this channel by 40×. Finally, we demonstrate the channel’s utility by leaking data from a GPU-accelerated database application

In service-oriented environments, services are put together in the form of a workflow with the aim of distributed problem solving. Capturing the execution details of the services' transformations is a significant advantage of using workflows. These execution details, referred to as provenance information, are usually traced automatically and stored in provenance stores. Provenance data contains the data recorded by a workflow engine during a workflow execution. It identifies what data is passed between services, which services are involved, and how results are eventually generated for particular sets of input values. Provenance information is of great importance and has found its way through areas in computer science such as: Bioinformatics, database, social, sensor networks, etc. Current exploitation and application of provenance data is very limited as provenance systems started being developed for specific applications. Thus, applying learning and knowledge discovery methods to provenance data can provide rich and useful information on workflows and services. Therefore, in this work, the challenges with workflows and services are studied to discover the possibilities and benefits of providing solutions by using provenance data. A multifunctional architecture is presented which addresses the workflow and service issues by exploiting provenance data. These challenges include workflow composition, abstract workflow selection, refinement, evaluation, and graph model extraction. The specific contribution of the proposed architecture is its novelty in providing a basis for taking advantage of the previous execution details of services and workflows along with artificial intelligence and knowledge management techniques to resolve the major challenges regarding workflows. The presented architecture is application-independent and could be deployed in any area. The requirements for such an architecture along with its building components are discussed. Furthermore, the responsibility of the components, related works and the implementation details of the architecture along with each component are presented.

Many child and youth care organisations in South Africa struggle to implement adequate supervision structures for their child and youth care workers. If supervisors in this field had adequate knowledge and skills, they could enable child and youth care workers to grow and develop competently and provide more professional services to troubled young people in South Africa, This qualitative research sought to identify what knowledge and skills supervisors need in child and youth care settings in South Africa to provide effective supervision to workers. This research confirmed that there are specific skills and knowledge required by supervisors in child and youth care settings in South Africa and while there is an awareness of these in some settings, they are not being fully utilised in organised supervision structures.
Social Work
M.Tech. (Child and Youth Care)