Tesis sobre el tema "Conceptual Design Methodology"
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Guroglu, Serkan. "An Evolutionary Methodology For Conceptual Design". Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606422/index.pdf.
Texto completoindividual experiences and prejudices. For this purpose, an evolutionary methodology for the conceptual design of engineering products has been proposed. This methodology performs evaluation, combination and modification of the existing solutions repetitively to generate new solution alternatives. Therefore, initially a representation scheme, which is generic enough to cover all alternatives in solution domain, has been defined. Following that, the evolutionary operations have been defined and two evaluation metrics have been proposed. Finally, the computer implementation of the developed theory has been performed. The test-runs of developed software resulted in creative alternatives for the design task. Consequently, the evolutionary design methodology presents a systematic design approach for less experienced or inexperienced designers and establishes a base for experienced designers to conceive many other solution alternatives beyond their experiences.
Rezvani, Reza. "A conceptual methodology for the prediction of engine emissions". Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/42932.
Texto completoKaruppoor, Srinand Sreedharan. "Tools for innovation and conceptual design". Texas A&M University, 2003. http://hdl.handle.net/1969.1/1260.
Texto completoOkonkwo, Paulinus Peter Chukwuemeka. "Conceptual design methodology for blended wing body aircraft". Thesis, Cranfield University, 2016. http://dspace.lib.cranfield.ac.uk/handle/1826/10132.
Texto completoQuispe-Chávez, Nohemí. "Conceptual methodology for the design of dairy processes". Thesis, University of Canterbury. Chemical Engineering, 2004. http://hdl.handle.net/10092/6538.
Texto completoZhao, Tienan. "Acquisition cost estimating methodology for aircraft conceptual design". Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/9587.
Texto completoJemitola, Paul Olugbeji. "Conceptual design and optimization methodology for box wing aircraft". Thesis, Cranfield University, 2012. http://dspace.lib.cranfield.ac.uk/handle/1826/7938.
Texto completoNairouz, Bassem R. "Conceptual design methodology of distributed intelligence large scale systems". Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/49077.
Texto completoVALENTE, LUIS PAULO SANTOS. "A METHODOLOGY FOR CONCEPTUAL DESIGN OF PERVASIVE MOBILE GAMES". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2011. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=28924@1.
Texto completoCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
FUNDAÇÃO DE APOIO À PESQUISA DO ESTADO DO RIO DE JANEIRO
PROGRAMA DE EXCELENCIA ACADEMICA
BOLSA NOTA 10
A pervasividade em jogos pode ser reconhecida cada vez que as fronteiras do jogo se expandem do mundo virtual para o mundo real. Sensores, aparelhos móveis, redes de computadores e a internet tornam possível a existência dos jogos pervasivos. Neste trabalho, consideramos como jogos pervasivos móveis os jogos que usam ciência de contexto e aparelhos móveis. Consideramos também que os smartphones são o veículo ideal para a viabilização dos jogos pervasivos. Até onde sabemos, este é o primeiro trabalho sobre projeto geral de jogos pervasivos móveis. Esta tese propõe uma metodologia para apoiar a etapa de projeto conceitual de jogos pervasivos móveis. As contribuições principais deste trabalho são duas: (1) uma lista de características peculiares e importantes de jogos pervasivos, identificadas na literatura do assunto e em projetos de jogos pervasivos existentes. Cada característica possui também um conjunto de perguntas de verificação. Essa lista de características (e as perguntas de verificação) podem ser usadas para inspirar novas ideias de jogos e também para ajudar a descobrir requisitos funcionais e não-funcionais para jogos pervasivos móveis. (2) Uma linguagem específica de domínio para ajudar a especificar atividades em jogos pervasivos móveis que usem aparelhos móveis, sensores e atuadores como elementos principais de interface. Com essa metodologia, os projetistas podem discutir, identificar, verificar e aplicar características importantes de jogos pervasivos móveis. Também, por se tratar de uma metodologia de natureza leve, os projetistas podem trabalhar no nível geral dos jogos (projeto), ao manterem-se focados na especificação das atividades e evitando se preocupar com detalhes de implementação e código-fonte.
Pervasiveness can be recognized in game playing every time the boundaries of playing expand from the virtual (or fictional) world to the real world. Sensor technologies, mobile devices, networking capabilities, and the internet make pervasive games possible. In the present work, we consider pervasive mobile games as context-aware games that necessarily use mobile devices. Also we consider that smartphones are the main driver to fulfill the promises of pervasive game playing. As far as we are aware, this is the first general work on pervasive mobile game design. This thesis proposes a methodology to support the conceptual design stage of pervasive mobile games. The main contributions of this research work are twofold: (1) A novel list of prominent features of pervasive games, identified from game projects and the literature, and checklists for each feature. This feature list (and corresponding checklists) can be used to spark novel game ideas, and to help in discovering functional and non-functional requirements for pervasive mobile games. (2) A domain specific language to help in specifying activities in pervasive mobile games that use mobile devices, sensors, and actuators as the main interface elements. With the proposed methodology, designers can discuss, identify, verify, and apply important features of pervasive mobile games. Also, due to the lightweight nature of the methodology, designers can easily catch the big picture of the games by keeping focused on the intents of the game activities, and not getting lost in the source code.
Vinney, John Edward. "Function based techniques for assisting engineering conceptual design". Thesis, University of the West of England, Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387937.
Texto completoHussain, Romana. "System-in-use methodology : a methodology to generate conceptual PSS (Product-Service Systems) and conventional designs using systems-in-use data". Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8262.
Texto completoNaidu, Catakam Ramchandra Jyoti Prakash. "Development of a methodology for conceptual design of industrial automation". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ28026.pdf.
Texto completoPanarotto, Massimo. "A Model-Based Methodology for Value Assessment in Conceptual Design". Doctoral thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-10912.
Texto completoBarbosa, Luciano Magno Fragola. "Development of a conceptual design methodology focused on solar aircrafts". Universidade Federal de Minas Gerais, 2014. http://hdl.handle.net/1843/BUOS-9PFGKX.
Texto completoEste trabalho apresenta estudos associados ao projeto de aeronaves solares. Foram pesquisadas características de aeronaves solares existentes, sua história e os desenvolvimentos e desafios técnicos associados, assim como suas limitações e campos de uso potencial. Para fins de análise das aeronaves solares existentes, e projeto de novas aeronaves solares, procurou-se inicialmente entender em que estas aeronaves diferem de aeronaves convencionais. Foi possível observar-se alguma semelhança das aeronaves solares, em termos da carga alar, com aeronaves pioneiras da aviação, dos anos 1890 a 1910. Foram desenvolvidos procedimentos e métodos dedicados à estimativa de arrasto, tração e desempenho de aeronaves de baixa velocidade propelidas por hélices. E utilizaram-se veículos aéreos solares ou não - com características conhecidas de desempenho para validar estes processos. A partir disto, processos específicos para a análise da propulsão solar foram desenvolvidos: definição de modelo de irradiação solar; definição da cadeia propulsiva, das células solares à hélice, e com uso ou não de baterias. Outras metodologias específicas a aeronaves solares foram investigadas e definidas: uma formulação geral para obtenção de carga alar máxima para viabilidade de uma aeronave solar; características aerodinâmicas de números de Reynolds abaixo de 150000; e métricas para estimativa de massa de aeronaves deste tipo. Com este conjunto de ferramentas, foi possível desenvolver-se dois métodos complementares para definição de uma configuração de aeronave solar, a partir dos requisitos de missão: o Solar Aircraft Design Method e o Mission Analysis Method. O segundo só se faz necessário em missões que envolvem grandes variações de altitude. Com as ferramentas desenvolvidas, três conceitos de aeronaves solares são calculados e apresentados, cada um com utilizações específicas. Em resumo, com este trabalho um cenário geral sobre aeronaves solares é desenvolvido visando o projeto deste tipo de aeronaves, e o trabalho apresentado aponta várias perspectivas e possibilidades de continuidade e aprofundamento.
Barnum, Garrett J. "A Computationally-assisted Methodology for Rapid Exploration of Design Possibilities in Conceptual Design". BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2131.
Texto completoDe, Baets Peter Wilfried Gaston. "A Methodology for Aeroelastic Constraint Analysis in a Conceptual Design Environment". Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5216.
Texto completoChang, J. M. "A flexible, subsonic high altitude long endurance UVA conceptual design methodology". Thesis, Cranfield University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245445.
Texto completoJilla, Cyrus D. 1974. "A multiobjective, multidisciplinary design optimization methodology for the conceptual design of distributed satellite systems". Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/16837.
Texto completoIncludes bibliographical references (p. 427-438).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
A multiobjective, multidisciplinary design optimization methodology for mathematically modeling the distributed satellite system (DSS) conceptual design problem as an optimization problem has been developed to advance the state-of-the-art in complex distributed satellite network design. An increasing number of space missions are utilizing DSS architectures in which multiple satellites work in a coordinated fashion to improve system performance, cost, and survivability. The trade space for distributed satellite systems can be enormous - too large to enumerate, analyze, and compare all possible architectures. The seven-step methodology enables an efficient search of the trade space for the best families of architectures, and explores architectures that might not otherwise be considered during the conceptual design phase, the phase of a DSS program in which the majority of lifecycle cost gets locked in. Four classes of multidisciplinary design optimization (MDO) techniques are investigated - Taguchi, heuristic, gradient, and univariate methods. The heuristic simulated annealing (SA) algorithm found the best DSS architectures with the greatest consistency due to its ability to escape local optima within a nonconvex trade space. Accordingly, this SA algorithm forms the core single objective MDO algorithm in the methodology. The DSS conceptual design problem scope is then broadened by expanding from single objective to multiobjective optimization problems, and two variant multiobjective SA algorithms are developed.
(cont.) The utility in knowing the global Pareto boundary of a DSS trade space is presented, and several methods are explored for approximating the true global Pareto boundary with only a limited knowledge of the full DSS trade space. Finally, methods for improving the performance of the SA algorithm are tested, and it was found that the 2-DOF variant of the SA algorithm is most effective at both single objective and multiobjective searches of a DSS trade space. The versatility of the methodology is demonstrated through its application to the conceptual design of three separate distributed satellite systems - the civil NASA Origins Terrestrial Planet Finder mission, the military TechSat 21 GMTI space-based radar mission, and the commercial broadband satellite communications mission. In each case, the methodology identifies more cost-effective system architectures than those previously considered for the single objective optimization problem, and a Pareto optimal set of architectures for the multiobjective optimization problem. In this manner, the methodology serves as a powerful, versatile systems engineering tool for the conceptual design of distributed satellite systems.
by Cyrus D. Jilla.
Ph.D.
Chaiworawitkul, Sakda 1977. "A design performance driven learning framework for conceptual design knowledge : methodology development and applications". Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/46551.
Texto completoPages 169 and 170 blank.
Includes bibliographical references (p. 165-167).
This thesis develops a learning framework for automation of acquisition of bridge conceptual design knowledge. The thesis proposes a new learning methodology explicitly aimed at capturing quality design aspects to help engineer gain insight into good design. The research uses the National Bridge Inventory (NBI) data, which contains more than 600,000 bridges. The physical condition ratings are used as proxies for design quality. In this data the relationships between physical condition ratings and bridge design elements are not well-known. The simultaneous equation model (SEM) technique is employed to model the physical condition ratings. SEM has the advantage over existing methods of state transition probability estimation in that no a-priori subjective conditional grouping is required. The resulting model yields the marginal effects of design variables on condition ratings, which is easy for engineers to interpret. The analysis results reveal that design features available in the NBI database alone do not adequately explain the resulting condition ratings. Using the identified performance model, COBWEB, an incremental clustering algorithm, is employed to learn mappings from design specification to configuration space. However, the COBWEB branching strategy focuses on probabilistic predictability of feature values. The learned knowledge therefore represents not clusters of good design aspects but rather clusters of local similarity. A modification to the existing strategy is proposed. A set of experiments has been conducted to compare the original and the modified COBWEB. Finally, the thesis provides a detailed discussion of issues related to the quality of the NBI database and proposes strategies for improved analysis of the NBI bridge data.
by Sakda Chaiworawitkul.
Ph.D.
Hughes, Richard Sylvester. "The conceptual structure of product semantic models". Thesis, Brunel University, 1999. http://bura.brunel.ac.uk/handle/2438/4969.
Texto completoKirby, Michelle Rene. "A methodology for technology identification, evaluation, and selection in conceptual and preliminary aircraft design". Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/12042.
Texto completoHines, Nathan Robert. "A probabilistic methodology for radar cross section prediction in conceptual aircraft design". Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/12517.
Texto completoTalley, Diana Noonan. "Methodology for the conceptual design of a robust and opportunistic system-of-systems". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26520.
Texto completoCommittee Chair: Mavris, Dimitri; Committee Member: Bishop, Carlee; Committee Member: Brown, David; Committee Member: Costello, Mark; Committee Member: Schrage, Daniel. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Terpenny, Janis Pinchefsky. "A methodology and supporting framework for functional modeling and configuration in conceptual design". Diss., Virginia Tech, 1996. http://hdl.handle.net/10919/30229.
Texto completoLejon, Alexander. "Creation and Validation of Early Stage Conceptual Design Methodology for Blended WingBody Aircraft". Thesis, KTH, Flygdynamik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-261700.
Texto completoDen befintliga konstruktionsmetodiken för utveckling och design av flygfarkoster är väl dokumenterad i tidigare publicerad litteratur. Detta arbete ämmar utveckla och validera en liknande metodologi som redan existerar för de väl etablerade flygplansgeometrier som baseras på cylinder/vingar-principen. Metoden som utvecklades inkluderade sammansättaning och validering av tidigare existerande lågupplösta samt lågkomplexa aerodynamiska modeller avsedda för beräkning av flödesekvationer för inkompressibel, friktionsfri och stationär strömning. Detta var avsett att möjliggöra ögonblicksvalidering av en föreslagen sammansmält kropp/vinge-geometri med speciell fokus på vissa prestationsbaserade nyckeltal. För cylinder/vinge-geometrier är dessa lågupplösta metoder i litteraturen väletablerat inexakta på grund av en avsaknad av stötvågsmodellering, men då stora delar av de lyftkraftsgenererande ytorna för-ändrats på en sammansmält kropp/vinge är inte nödvändigtvis detta sant för den typen av flygplan också. Då de högupplösta, mer komplexa höghastighetssimuleringarna inte konvergerade inom den utsatta tiden kan den föreslagna metodiken endast anses giltig för det intervall av flödeshastighet vari PrandtlGlauerts korrektionsfaktor stämmer väl överens med verkligheten.
Aysolmaz, Bozlu Banu E. "A Study On Conceptual Modeling In Simulation Systems: An Extended Methodology For Kama". Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609027/index.pdf.
Texto completoS activities, which is named as KAMA-C4ISRMOS. KAMA methodology is developed to utilize conceptual models in requirements collection and analysis activities. Two improvement opportunities observed in KAMA approach are that, there are no methodologies defined to develop simulation space conceptual models
and although most approaches emphasize the importance of conceptual model to be used in design activities, no explanations are provided on how to do it. This thesis aims to suggest an extended KAMA methodology that, besides original KAMA properties, provides a method to develop simulation space conceptual model, and provides a guide to use conceptual model to develop design. To evaluate the suggested methodology, a case study is conducted on a synthetic environment project. In this way, implementation of the methodology on another simulation domain is depicted. Developed mission space and simulation space conceptual models and design artifacts are evaluated, and the effects of conceptual models on simulation development life cycle are discussed.
Altman, Aaron. "A conceptual design methodology for low speed high altitude long endurance unmanned aerial vehicles". Thesis, Cranfield University, 2000. http://hdl.handle.net/1826/3998.
Texto completoKeen, Ernest Brock. "A Conceptual Design Methodology for Predicting the Aerodynamics of Upper Surface Blowing on Airfoils and Wings". Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/35999.
Texto completoMaster of Science
Garmendia, Daniel Charles. "A multi-disciplinary conceptual design methodology for assessing control authority on a hybrid wing body configuration". Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54328.
Texto completoWoolley, Max. "Customer optimised design analysis : a metric based methodology for conceptual design analysis, selection and optimisation within new product development". Thesis, University of the West of England, Bristol, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486297.
Texto completoShams, Maha. "Elevating the perception of the strategic use of design for an airline through the design management conceptual framework (DMCF)". Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/12297.
Texto completoJhugroo, Avinash. "A conceptual methodology to assist employees and employers design new ways of working in lean manufacturing". Thesis, Loughborough University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416165.
Texto completoChudoba, Bernd. "Development of a generic stability and control methodology for the conceptual design of conventional and unconventional aircraft configurations". Thesis, Cranfield University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341017.
Texto completoOrdaz, Irian. "A probabilistic and multi-objective conceptual design methodology for the evaluation of thermal management systems on air-breathing hypersonic vehicles". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26478.
Texto completoCommittee Chair: Mavris, Dimitri N.; Committee Member: German, Brian J.; Committee Member: Osburg, Jan; Committee Member: Ruffin, Stephen M.; Committee Member: Schrage, Daniel P.. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Won, Henry Thome. "A system-of-systems modeling methodology for strategic general aviation design decision-making". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26469.
Texto completoCommittee Chair: Mavris, Dimitri; Committee Member: Gallman, John; Committee Member: Lewe, Jung-Ho; Committee Member: Schrage, Daniel; Committee Member: Upton, Eric. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Hart, Peter Bartholomew. "A plm implementation for aerospace systems engineering-conceptual rotorcraft design". Thesis, Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28278.
Texto completoPorst, Roland. "A new transit system and conceptual models with associated findings to improve urban transport". Thesis, Queensland University of Technology, 2002.
Buscar texto completoLeite, de Vasconcelos Luis Arthur. "Methodological investigations into design inspiration and fixation experiments". Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/267495.
Texto completoBowen, Simon John. "A critical artefact methodology : using provocative conceptual designs to foster human-centred innovation". Thesis, Sheffield Hallam University, 2009. http://shura.shu.ac.uk/3216/.
Texto completoŘezáčová, Veronika. "Diagnostický průzkum objektu historické budovy". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225662.
Texto completoMalinowski, Gajda Elzbieta. "Designing conventional, spatial, and temporal data warehouses: concepts and methodological framework". Doctoral thesis, Universite Libre de Bruxelles, 2006. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210837.
Texto completoA data warehouse is a database that allows to store high volume of historical data required for analytical purposes. This data is extracted from operational databases, transformed into a coherent whole, and loaded into a DW during the extraction-transformation-loading (ETL) process.
DW data can be dynamically manipulated using on-line analytical processing (OLAP) systems. DW and OLAP systems rely on a multidimensional model that includes measures, dimensions, and hierarchies. Measures are usually numeric additive values that are used for quantitative evaluation of different aspects about organization. Dimensions provide different analysis perspectives while hierarchies allow to analyze measures on different levels of detail.
Nevertheless, currently, designers as well as users find difficult to specify multidimensional elements required for analysis. One reason for that is the lack of conceptual models for DW and OLAP system design, which would allow to express data requirements on an abstract level without considering implementation details. Another problem is that many kinds of complex hierarchies arising in real-world situations are not addressed by current DW and OLAP systems.
In order to help designers to build conceptual models for decision-support systems and to help users in better understanding the data to be analyzed, in this thesis we propose the MultiDimER model - a conceptual model used for representing multidimensional data for DW and OLAP applications. Our model is mainly based on the existing ER constructs, for example, entity types, attributes, relationship types with their usual semantics, allowing to represent the common concepts of dimensions, hierarchies, and measures. It also includes a conceptual classification of different kinds of hierarchies existing in real-world situations and proposes graphical notations for them.
On the other hand, currently users of DW and OLAP systems demand also the inclusion of spatial data, visualization of which allows to reveal patterns that are difficult to discover otherwise. The advantage of using spatial data in the analysis process is widely recognized since it allows to reveal patterns that are difficult to discover otherwise.
However, although DWs typically include a spatial or a location dimension, this dimension is usually represented in an alphanumeric format. Furthermore, there is still a lack of a systematic study that analyze the inclusion as well as the management of hierarchies and measures that are represented using spatial data.
With the aim of satisfying the growing requirements of decision-making users, we extend the MultiDimER model by allowing to include spatial data in the different elements composing the multidimensional model. The novelty of our contribution lays in the fact that a multidimensional model is seldom used for representing spatial data. To succeed with our proposal, we applied the research achievements in the field of spatial databases to the specific features of a multidimensional model. The spatial extension of a multidimensional model raises several issues, to which we refer in this thesis, such as the influence of different topological relationships between spatial objects forming a hierarchy on the procedures required for measure aggregations, aggregations of spatial measures, the inclusion of spatial measures without the presence of spatial dimensions, among others.
Moreover, one of the important characteristics of multidimensional models is the presence of a time dimension for keeping track of changes in measures. However, this dimension cannot be used to model changes in other dimensions.
Therefore, usual multidimensional models are not symmetric in the way of representing changes for measures and dimensions. Further, there is still a lack of analysis indicating which concepts already developed for providing temporal support in conventional databases can be applied and be useful for different elements composing a multidimensional model.
In order to handle in a similar manner temporal changes to all elements of a multidimensional model, we introduce a temporal extension for the MultiDimER model. This extension is based on the research in the area of temporal databases, which have been successfully used for modeling time-varying information for several decades. We propose the inclusion of different temporal types, such as valid and transaction time, which are obtained from source systems, in addition to the DW loading time generated in DWs. We use this temporal support for a conceptual representation of time-varying dimensions, hierarchies, and measures. We also refer to specific constraints that should be imposed on time-varying hierarchies and to the problem of handling multiple time granularities between source systems and DWs.
Furthermore, the design of DWs is not an easy task. It requires to consider all phases from the requirements specification to the final implementation including the ETL process. It should also take into account that the inclusion of different data items in a DW depends on both, users' needs and data availability in source systems. However, currently, designers must rely on their experience due to the lack of a methodological framework that considers above-mentioned aspects.
In order to assist developers during the DW design process, we propose a methodology for the design of conventional, spatial, and temporal DWs. We refer to different phases, such as requirements specification, conceptual, logical, and physical modeling. We include three different methods for requirements specification depending on whether users, operational data sources, or both are the driving force in the process of requirement gathering. We show how each method leads to the creation of a conceptual multidimensional model. We also present logical and physical design phases that refer to DW structures and the ETL process.
To ensure the correctness of the proposed conceptual models, i.e. with conventional data, with the spatial data, and with time-varying data, we formally define them providing their syntax and semantics. With the aim of assessing the usability of our conceptual model including representation of different kinds of hierarchies as well as spatial and temporal support, we present real-world examples. Pursuing the goal that the proposed conceptual solutions can be implemented, we include their logical representations using relational and object-relational databases.
Doctorat en sciences appliquées
info:eu-repo/semantics/nonPublished
Lee, Ment-ta y 李孟達. "Conceptual Design based on Design Thinking Methodology". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/6r88ax.
Texto completo國立臺灣科技大學
建築系
99
Design thinking is a human-centered approach to develop innovation solutions and improve quality and convenience of life. Using this innovating approach, designers think about people fi rst, understand potential needs of people through observation on the spot and realize problems, then develop new products, services and concepts which meet people’s needs during brainstorming and prototyping. In this research, I have developed a series of conceptual design by design thinking methodology, and assessed future development of the works by three criteria. The research result shows that the works meet more needs when compared to original design.
Wei-Ming, Pai. "A Methodology for Conceptual Design of Mechanisms by Classifying Design Specifications". 2004. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-1406200412342500.
Texto completoPai, Wei-Ming y 白維銘. "A Methodology for Conceptual Design of Mechanisms by Classifying Design Specifications". Thesis, 2004. http://ndltd.ncl.edu.tw/handle/83027403621864155650.
Texto completo國立臺灣大學
機械工程學研究所
92
A systematic and efficient methodology for conceptual design of mechanisms is developed based on the classification of design specifications. In this work, design specifications for a mechanism are recast into three more coherent categories: functional requirements, structural requirements and design constraints. Based on functional requirements, the functioning kinematic chain of the mechanism is constructed by the functioning links such as the ground, input and output links, etc. According to structural requirements, kinematic structures are searched from the existing atlas of kinematic structures. Then, the functioning kinematic chain is compared with segments of the kinematic structures searched to obtain a much smaller number of compatible kinematic structures, where development of conceptual design of mechanisms can be efficiently accomplished. Lastly, joints of the compatible kinematic structures are labeled subject to design constraints, such that feasible mechanisms are yielded. With this methodology, design specifications with different natures can be used to guide a designer through various stages of the conceptual design process in a systematic manner. The creation of the variable-stroke engine mechanism is used as an illustrative example. Two design examples, the creation of the latch and retainer mechanisms for wafer containers are presented to demonstrate the proposed methodology. It is believed that the proposed methodology and design examples are beneficial to the conceptual design of mechanisms.
Chiu, Chiung-yu y 邱瓊玉. "A Study on Air Hub Passenger Terminal Conceptual Design Methodology". Thesis, 1993. http://ndltd.ncl.edu.tw/handle/35479445242999837672.
Texto completo國立臺灣大學
土木工程研究所
81
Designing for the concept of an air hub requires the provisions for adequate expansion and flexibility to accommodate a much lager level, more transfer, and different kind of demand. This study aims at building the framework of air hub conceptual design methodology that is corresponding with the characteristics of hub operations. The systematic methodology generates the concept alternatives of master plan more efficiently. In practices, experience of engineers, in-depth system analysis, expert knowledge, and case-based reasoning are essential in alternatives generation process. A design database system based on previous design experience is constructed as a basis of reasoning by analogy. Case study of CKS master plan update and the Southern International Airport project, including comparative analysis of outputs from the consustants and this study, is performed to arrive at a general and practical design methodology. The results show that the inverted-T pier is recommended.
Hsu, Chuan-hsi y 許權璽. "Pre-Sales Consultant Utilizing Design Science Methodology Applications Cases -Conceptual Design of Information Systems". Thesis, 2012. http://ndltd.ncl.edu.tw/handle/hxg92q.
Texto completo國立臺灣科技大學
資訊管理系
100
In this age of advanced information technology, many businesses are contemplating the question of how to utilize information systems to enhance their competitive capacity. Most companies do not have sufficient time or human resources to develop information systems on their own and thus outsource this task to software vendors. However, providing the vendor with a complete plan for the proposed information system often poses difficulty for staff, particularly if they lack previous experience using such systems. As service providers, software vendors must meet the needs of their clients, create customer value, and enhance competitive capacity. However, when commencing a project, the vendor not only faces a limited timeframe for completion but often finds customers uncertain and ambiguous concerning their plans and requirements for the information system. All too often, it is only after both parties have invested a great deal of time and resources in the project that they realize that the initial plans do not meet the practical needs of the business. As a result, the results that were originally expected cannot be achieved. This study drew on the perspective of Robert, a pre-sales consultant working for a software supplier. We explored the difficulties encountered in the pre-sales stage of system evaluation and attempted to identify feasible solutions from previous successful experiences. The aim of this study was to explore how, within a short duration, software system vendors can quickly integrate themselves into the customer environment, explore customer needs, identify core problems, and propose suitable plans for information system. We try to find some way to review information systems plans to ensure that customer’s different level needs about strategy, management and operation are met. In teaching notes, we applied the concept of IT Artifacts to analysis of case studies. The goal was to identify how IT Artifacts can be used during the planning phase to determine whether project plans are in line with organizational needs, identify potential risks, build consensus between the company and software supplier, and enhance the quality and accuracy of project plans.
Deng, Y. M. y Wen Feng Lu. "Performance-Driven Microfabrication-Oriented Methodology for MEMS Conceptual Design with Application in Microfluidic Device Design". 2004. http://hdl.handle.net/1721.1/7460.
Texto completoSingapore-MIT Alliance (SMA)
Oza, Amit Ramesh. "A generic methodology for flight test and safety evaluation at conceptual design". 2009. http://hdl.handle.net/10106/1795.
Texto completoWillett, Alice A. "A generative methodology for reframing visual culture". 2013. http://hdl.handle.net/2152/22476.
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Hallihan, Gregory M. "Mitigating Cognitive and Neural Biases in Conceptual Design". Thesis, 2012. http://hdl.handle.net/1807/33234.
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