Dissertations / Theses on the topic 'Component Design'
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O'Fallon, Andrew Steven. "Component-based software engineering qualification of components during design /." Online access for everyone, 2004. http://www.dissertations.wsu.edu/Thesis/Summer2004/A%5FOFallon%5F073004.pdf.
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Avkarogullari, Okan. "Representing Design Patterns As Super Components In Component Oriented Software Engineering." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/1305390/index.pdf.
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It is widely believed and empirically shown that component reuse improves both the quality and productivity of software development. This brings the necessity of a graphical editor to model the projects by using components. A graphical editor was implemented for the development of Component Oriented software development. The editor facilitates modeling efforts through application of the graphical modeling language COSEML. Both design patterns and software components have come to play important roles in software development. The correlation between software components and design patterns is apparent. In the design phase of the projects design patterns are used widely both in component and object oriented projects. Design patterns can be used as super components in component-based development . Software reuse, software components, design patterns, use of design patterns in component-based development, and component architectures are studied in details to address the need for the approach. COSE modeling activity starts with the decomposition of the target system into building blocks in a top-down order. Next, interfaces between these blocks are defined. If required design patterns can be added to model as super components.
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Lim, Kahn Li 1979. "Serializerdeserializer component design and text." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99523.
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Serializer/Deserializers (SerDes) commonly used in telecommunication networks are now becoming widespread in computer and embedded systems to meet higher data bandwidth demand and support higher peripheral device performance requirements. These input/output (IOs) peripherals are design to provide reliable high speed data transfer capabilities to computers and embedded devices. This thesis provides a novel phase detector design in clock recovery system of a multi-level SerDes component. The multi-level phase detector incorporates a high speed array Flash Analog to Digital converter (ADC) front-end and an all-digital phase detection block. The all-digital design allows for lower power consumption and ease of transfer between technologies. This thesis also presents a Built-In-Self-Test (BIST) component that provides an enhancement to existing SerDes BIST measurements of duty cycle fitter. The measurement method provides better accuracy and is scalable due to its digital implementation. We provide histogram analysis for the enhanced BIST measurement for both constant and varying test input, repeatability and the effect of histogram bin size.
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Kivijärvi, M. (Marko). "Cross-platform software component design." Master's thesis, University of Oulu, 2013. http://urn.fi/URN:NBN:fi:oulu-201306011427.
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The aim of this thesis is to analyze a project to design and implement a new FM Radio application for Symbian OS. The project process and relevant events are discussed when they have an impact on the design work. The goal of the project was to offer an improved user experience with features like favorite stations, song history, RT+ support, and automatic region selection. In order to complete the application within the project schedule, the existing radio modules were to be reused as much as possible. The application was required to be developed using the Qt application framework and to have no dependencies on the old UI framework from the Symbian OS. Platform-independence, testability, and simplicity were other key requirements for the new radio application. A final comprehensive goal was to stick to established design patterns and to follow the design principles and good practices defined earlier in the bachelor’s thesis by the same author. An added challenge was provided by the necessity to develop the application on top of a new UI framework that was still in development itself. Constant changes to the framework put a strain on the already tight project schedule. The discussion focuses on the design of the engine module that was required to house most of the application logic. The engine is disconnected from the Symbian OS by the use of a wrapper module, whose purpose is to hide the platform details. Due to its relevance to the engine, the design of the wrapper is discussed in detail. The application UI and the reused radio modules are discussed briefly and only to the extent that is relevant for the engine design. The resulting design fulfills its requirements and the implemented application performs as designed. All the required features are supported, and the existing radio modules are reused. The lack of dependency on the old UI framework is witnessed by running the application in a system that does not contain the framework. The possibility to run the application on a Windows workstation also affirms that the platform-independence requirement was achieved. The design and implementation adhere to the principles outlined in the bachelor’s thesis and provide a practical use for them. The principles are found to be valid and important for the successful completion of a complex software project. It is discovered that the goal of designing a simple system from complicated beginnings is difficult to achieve and requires many iterations. Gradual refinements to the architecture and implementation are necessary to finally arrive at the optimal design. Constant refactoring is found to be a key element in the successful completion of a software projectTässä työssä analysoidaan projektia, jossa suunniteltiin ja toteutettiin uusi FM Radio -sovellus Symbian-käyttöjärjestelmälle. Projektin prosessi ja oleelliset tapahtumat kuvataan siltä osin kuin ne vaikuttavat suunnittelutyöhön. Projektin tavoite oli tarjota parempi käyttökokemus uusilla ominaisuuksilla kuten suosikkikanavilla, kappalehistorialla, RT+ -tuella, ja automaattisella aluevalinnalla. Olemassa olevia radiomoduuleita oli uudelleenkäytettävä niin paljon kuin mahdollista, jotta projekti saataisiin aikataulun puitteissa valmiiksi. Sovellus tuli suunnitella Qt-sovelluskehystä käyttäen, eikä sillä saanut olla riippuvuuksia vanhaan käyttöliittymäkirjastoon. Alustariippumattomuus, testattavuus ja yksinkertaisuus olivat myös tärkeitä vaatimuksia. Viimeinen kattava tavoite oli pitäytyä vakiintuneissa suunnittelumalleissa ja noudattaa suunnitteluperiaatteita ja hyviä toimintatapoja, jotka olivat saman tekijän kandidaatintyössä aiemmin määritelty. Tarve toteuttaa sovellus keskeneräisen käyttöliittymäkirjaston päälle asetti oman lisähaasteensa. Jatkuvat muutokset kirjastossa rasittivat jo valmiiksi tiukkaa projektiaikataulua. Tämän työn pääpaino on moottorimoduulissa, jonka tuli sisältää suurin osa sovelluksen logiikasta. Moottori on eriytetty Symbian-käyttöjärjestelmästä adapterimoduulilla, jonka tarkoitus on piilottaa ohjelmistoalustan yksityiskohdat. Adapterin suunnitelma kuvataan yksityiskohtaisesti. Sovelluksen käyttöliittymä ja uudelleenkäytetyt radiomoduulit kuvataan lyhyesti ja vain niiltä osin kuin ne ovat moottorin suunnitelmalle oleellisia. Tuloksena syntyvä suunnitelma täyttää vaatimukset, ja toteutettu sovellus toimii kuten oli suunniteltu. Kaikki vaaditut ominaisuudet ovat tuettuja ja olemassa olevat radiomoduulit käytettiin uudelleen. Riippumattomuus vanhasta käyttöliittymäkirjastosta havaitaan suorittamalla sovellusta järjestelmässä, jossa sitä ei ole. Mahdollisuus ajaa sovellusta Windows-työasemassa myös todistaa sen, että alustariippumattomuuden vaatimus täytettiin. Suunnitelma ja toteutus noudattavat kandidaatintyössä määriteltyjä periaatteita ja tarjoavat niille käytännön sovellutuksen. Periaatteet todetaan paikkansapitäviksi ja tärkeiksi monimutkaisen ohjelmistoprojektin onnistuneen valmistumisen kannalta. Työssä havaitaan, että tavoite suunnitella yksinkertainen järjestelmä monimutkaisista lähtökohdista on vaikea saavuttaa ja vaatii useita toistoja. Asteittaiset korjaukset arkkitehtuuriin ja toteutukseen ovat välttämättömiä optimaaliseen suunnitelman saavuttamiseksi. Jatkuvan uudelleenjärjestelyn havaitaan olevan avainasemassa ohjelmistosuunnitteluprosessissa
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Bassett, Michael C. "Design techniques for bus component implementation." Thesis, University of Sussex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307239.
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Chargin, David Anthony 1974. "Rotary fast tool servo component design." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/9403.
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Kulkarni, Sandeep. "Component based design of fault-tolerance /." The Ohio State University, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488191667180527.
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Togay, Cengiz. "Systematic Component-oriented Development With Axiomatic Design." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609690/index.pdf.
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In this research, component oriented development is supported with design guidance by extending the Axiomatic Design Theory for component orientation, and utilizing domain engineering and ontology mechanisms. Guidance is offered in the form of suggesting missing components and discovering incompatibilities among the candidate elements of software development, corresponding to different phases such as requirement analysis, design, and implementation. A mature domain concept is developed suggesting the availability of reference models for customer needs, software system requirements, software design, and also a rich set of implemented components. As the system is being defined starting with the customer needs and progressing towards components, at every step the developer is presented what is available in the domain and what becomes unavailable. This guidance is based on the selections made so far, utilizing ontology based constraint checking. Feature Models are incorporated for modeling customer needs. Case studies are presented for demonstration purposes.
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Bauer, Sebastian. "Modal specification theories for component-based design." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-150389.
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Al-Kazzaz, Dhuha Abdulgani Abdulaziz. "Shape grammars for hybrid component-based design." Thesis, University of Strathclyde, 2011. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=16772.
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Abraham, David. "Resin transfer moulding component design and manufacture." Thesis, University of Ulster, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243618.
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Smith, Nigel. "A concurrent approach to component layout." Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285937.
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OLIVEIRA, José Dihego da Silva. "Constructive extensibility of trust worthy component-based systems." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/19522.
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As computer systems become ubiquitous, the demand for rigorous and compositional development methods increase dramatically. In the component-based model driven development (CB-MDD) approach, complex systems (sometimes intractable by humans) are build from simple elements, called components. To achieve the CB-MDD goals towards becoming a rigorously development discipline, components and composition rules must be formalised. Moreover, as requirements continuously evolve, there must be mechanisms to refine and safely extend component-based systems. The BRIC component model formalises the CB-MDD core concepts and supports a constructive design based on composition rules that preserves behavioural properties, but do not provide support for component model evolution. In this work we propose inheritance and refinement relations for BRIC. We define a congruent semantics for this model that considers component structure and behaviour. We define refinement as a preorder relation, which is monotonic with respect to the BRIC composition rules. We enhance this component model with support for extensibility via inheritance. The proposed relations allow extension of functionality, whilst preserving service conformance, which we define by means of a convergence notion. We also establish an algebraic connection between component extensibility and refinement. As far as we are aware this is the first time componente inheritance relations are developed for a formal and sound CB-MDD approach. We also integrate the aspect-oriented paradigm into BRIC. We contribute with an approach to capture, specify and use aspects to safely evolve component-based systems. We establish that components extended by aspects preserve the proposed convergence relation that guarantees service conformance. Furthermore, we establish a connection between componente inheritance and aspects, presenting inheritance as a mechanism to define families of componentes and aspects to capture orthogonal concerns over them. The practical relevance of the proposed relations is illustrated by three case studies. One is an autonomous healthcare system, which evolve by the addition of new functionalities via inheritance and by the modularisation of its crosscutting concerns in a reusable and maintainable manner with aspects. Another case study is a bank system, whose functionalities are progressively realised and extended by refinement and inheritance, respectively. Finally, we model a P2P system extended by inheritance to reduce the network traffic.
Na medida em que os sistemas computacionais se tornam mais pervasivos, a demanda por métodos de desenvolvimento rigorosos e composicionais cresce dramaticamente. No desenvolvimento baseado em componentes (CB-MDD), sistemas complexos (muitas vezes humanamente intangíveis) são construídos a partir de elementos mais simples, chamados componentes. Para atingir os objetivos desta abordagem na direção de torná-la uma disciplina formal de desenvolvimento, componentes e regras de composição devem ser formalizados. Além disso, considerando que os requisitos de um sistema estão em constante evolução, necessitamos de mecanismos para refinar e estender de forma confiável tais sistemas. O modelo de componentes BRIC formaliza os conceitos chave da abordagem CB-MDD, além de garantir corretude por construção se baseando em regras de composição que preservam propriedades comportamentais. BRIC, porém, por não possuir relações de extensão, não suporta evolução de modelos baseados em componentes. Neste trabalho propomos relações de herança e refinamento para BRIC. Definimos uma semântica congruente que considera tanto a estrutura quanto o comportamento de componentes. Definimos refinamento como uma relação de pré-ordem, a qual é monotônica em relação as regras de composição de BRIC. Estendemos este modelo de componentes com suporte a extensibilidade via herança. As relações propostas permitem extensão de funcionalidade, ao mesmo tempo em que preservam conformidade de serviços, a qual é definida em termos de uma noção de convergência. Estabelecemos também uma conexão algébrica entre extensibilidade de componentes e refinamento. Até onde estamos cientes, este trabalho é pioneiro no desenvolvimento de noções de herança de componentes para uma abordagem CB-MDD formal e consistente. Também integramos o paradigma orientado a aspectos em BRIC. Contribuímos com uma abordagem para capturar, especificar e adotar aspectos no desenvolvimento confiável de sistemas baseados em componentes. Estabelecemos que componentes estendidos por aspectos preservam convergência, o que garante conformidade de serviços. Além disso, desenvolvemos uma conexão entre herança e aspectos, apresentando herança como um mecanismo para definir famílias de componentes e aspectos para capturar conceitos ortogonais sobre as mesmas. Ilustramos a relevância prática das relações propostas através de três estudos de caso. No primeiro, modelamos um sistema autônomo de cuidados médicos, estendido pela adição de novas funcionalidades via herança e pela modularização de conceitos transversais de forma reusável e manutenível via aspectos. Na sequência, modelamos um sistema bancário, cujas funcionalidades são progressivamente implementadas e estendidas pelo uso de herança e refinamento. Finalmente, modelamos um sistema P2P cujo tráfico é reduzido por extensão via herança.
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Rodrigues, M. R. D. "A tree-based algorithm for component placement." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376139.
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Carlson, Susan Elizabeth. "Component selection optimization using genetic algorithms." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/17886.
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Jiang, Wenxia. "New constructs for component-based modeling and design." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0015/MQ58046.pdf.
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Dessens, Luis Felipe Romero. "Strong component-based methodology for facility layout design." Thesis, University of Warwick, 2003. http://wrap.warwick.ac.uk/68249/.
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Among many issues involved within the field of manufacturing systems, the design of facilities layout is an ongoing and interesting research field, where new solutions and approaches are sought to determine the appropriate location and physical organisation of the resources in manufacturing systems. Issues such as space, material handling, machine placement and orientation, utilities location, and environmental factors are important features that may be considered when establishing the requirements of a facility layout design. The facility layout design can be thought of in terms of interconnecting work centres that can be represented by a set of interrelated vertices in a graph. Directed graphs can be used to characterise each product operation sequence, which combined into a single directed graph, be used to represent appropriately a layout design. Doing this together with the material handling system requirements, will allow better facilities planning and may improve process sequences that should be reflected in better designs. The Strong Component Based Methodology proposed here, obtains a graphical structure from the integration of various products and using their operation sequences to produce a relationship diagram. The attributes of the resultant structure are used to create this diagram. The objective is to obtain layouts that minimise material handling, that is, as close as possible to that which can be obtained with dedicated facilities for each product family but without the capital costs involved in the case of the latter. Encouraging results have been obtained by considering strong components, a feature of directed graphs, because less computational resources than in the case of many previous methods, which use Quadratic Assignment Problem approaches, are required to formulate and produce a relationship diagram. Moreover, this approach produces faster designs than other graph theoretic approaches because it avoids using planar and dual graphs. These characteristics allow the Strong Components approach to address more complex situations and obtain comparable or better solutions than previous approaches. The proposed Strong Component approach is a robust and versatile tool to support layout designs. It is a robust methodology because it provides efficient relationship diagrams even in cases when the resultant structure has relatively few strong component relationships. It is a versatile approach, because it can address various situations and can use different criteria to create layouts. Thus, the proposed approach offers effective-economical relationship diagrams to produce the same set of products as when producing them in dedicated facilities.
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Dai, Wenhui. "Design of principal component fuzzy systems from data /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202004%20DAI.
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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004.Includes bibliographical references (leaves 48-52). Also available in electronic version. Access restricted to campus users.
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Klippel, Brian (Brian Phillip) 1966. "A design methodology for automotive component manufacturing systems." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50428.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and, (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management, 1998.Includes bibliographical references (p. 93-94).
by Brian Klippel.
M.B.A.
S.M.
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Sudhir, Arun. "Tree Component Alternatives to the Composite Design Pattern." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/36206.
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The Composite design pattern is commonly employed in object-oriented languages to design a system of objects that form a part-whole hierarchical structure with composite objects formed out of primitive objects. The client does not differentiate between a composite object and a primitive object. The composite hierarchy effectively forms a tree-like hierarchical grouping of objects. From a software engineering perspective, there are at least two problems with the Composite pattern. First, it does not maintain a separation of concerns between the structure of the objects in a system and the objects themselves. The objects that comprise the system contain information about their relationship to other objects. This limits the ability of programmers to reuse the systemâ s structural information. Secondly, there is no mechanism for encapsulating the system as a whole. This makes it difficult to specify and reason about global system properties. This thesis presents two tree components that can be used as alternatives to the Composite design pattern in systems that are traditionally implemented with the pattern. Both components are data structures that can contain arbitrary objects and maintain the structure of those objects as an ordered-tree. Since the components encapsulate only the tree structure, they only need to be specified and verified once, and they are available for black-box reuse. The first component is a traversable tree that maintains a conceptual â cursorâ position. Methods are provided for inserting and removing objects at the cursor position, and for moving the cursor throughout the tree. The second component extends the traversable tree. A formal specification for each tree component is presented in the Tako language â a Java-like language with alias avoidance that is designed to facilitate specification and verification. A case study is presented that shows how the indexed tree can be used and reasoned about in an application â a text-based adventure game. Finally, a similar application is developed in Java, once using the composite pattern and once using the indexed tree data structure, and object-oriented metrics are given for both systems.Master of Science
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Renaud, Karen Vera. "A generic feedback mechanism for component-based systems." Thesis, University of Glasgow, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326059.
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Chang, Yo-Cheng. "Design and implementation of a synthetic biological component based on the bacterial two-component system." Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.534147.
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Antwi, Samuel. "Formative Research on Component Display Theory." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1510679208927503.
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Adhikari, Rabindra. "The pursuit of sustainability : architecture and component based design." Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1370875.
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Architectural sustainability is ambiguous. The contemporary understanding of sustainability is often debated on the basis of environmental and humanitarian focus. This focus often brings ambiguity when the concept of sustainability is promoted as an end product and not as a perpetual process. For ecologically harmonious and sustainable human survival, sustainable methods and processes are believed to encourage reworking the course of human development.The Component-based design approach is a promising and appropriate method for achieving sustainability. The method involves systems thinking and illustrates characteristics like flexibility, resilience, adaptability and generative system. The focus of design should be in making relationships among these various components and processes, rather than emphasis on end product. This creative project illustrates these conceptual processes using computational logic to create a project for graphics and multimedia presentation.Department of Architecture
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Lau, Kevin Keung. "The use of graphical techniques in component selection systems." Thesis, University of Bath, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334701.
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Watkins, R. I. "Multilevel optimum design of large laminated composite structures." Thesis, Cranfield University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374011.
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Håkansson, John. "Design and verification of component based real-time systems /." Uppsala : Acta Universitatis Upsaliensis, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-101423.
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Wiklander, Jimmie. "Component-based software design of embedded real-time systems." Licentiate thesis, Luleå : Luleå University of Technology, 2009. http://pure.ltu.se/ws/fbspretrieve/3318285.
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Dirisala, Siva Kumar 1974. "Automating design intent capture for component based software reusability." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/50001.
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Haggard, Westley. "nContract - Creating Configurable Run-Time Contract Verification for .NET Components." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/31632.
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The use of third-party components is helpful while writing complex software systems, but it can be difficult to debug software that interacts with third-party components. To address this problem, a mechanism for determining if one is using the component correctly would be beneficial. Reading component documentation may or may not help, depending on its clarity and precision. A formally specified contract for that component would be better, and would also allow run-time contract verification via assertions. The client of the component could enable these assertions during development and debugging, and then disable them for the final production release to increase performance.
This thesis presents nContract, a tool that provides configurable run-time contract verification without requiring component recompilation or source code access. nContract allows component developers to formally specify .NET components using attributes. This contract information is retrieved from the compiled componentâ s metadata and a subclass is generated for each formally specified type. All members of the componentâ s interface are overridden and contract assertions are wrapped around calls to the base class. As long as the component client uses a factory to create instances of the componentâ s types, the decision of whether or not to create assertion-checked or unchecked objects can be deferred until run-time.Master of Science
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Zhu, Cheng-Feng. "CAD/CSPP/CAM integration using feature-based component data model." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362993.
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Mahdavi, Babak. "The design of a distributed, object-oriented, component-based framework in multidisciplinary design optimization /." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79039.
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The Multidisciplinary Design Optimization (MDO) can be defined as a methodology for the design of complex engineering systems where collaboration and abilities to mutually interacting between different disciplines are fundamental. In this thesis, Virtual Aircraft Design and Optimization fRamework (VADOR), a distributed, object-oriented, component-based framework enabling MDO practice at Bombardier Aerospace is introduced. The purpose of the VADOR framework is to enable the seamless integration of commercial and in-house analysis applications in a heterogeneous, distributed computing environment, and allow the management and sharing of the data. The VADOR distributed environment offers visibility to the process, permitting the teams to monitor progress or track changes in design projects and problems. Documentation of the MDO process is vital to ensure clear communication of the process within the team defining it and in the broader design team interacting with it. VADOR is implemented in Java, providing an object-oriented, platform-independent framework. The concepts of design pattern and component-based approach are used along with multi-tiered distributed design to deliver highly modular and flexible architecture. (Abstract shortened by UMI.)
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Norris, Diane Christine. "Plasma facing component design concepts in heat removal and stress." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/17556.
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Salvadó, López Baldiri. "Design principles in two component systems and his-asp phosphorelays." Doctoral thesis, Universitat de Lleida, 2016. http://hdl.handle.net/10803/393740.
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L’objectiu d’aquesta tesi és trobar principis generals que permetin relacionar l’estructura i les propietats funcionals dels circuits moleculars de transducció de senyals two-component systems (TCS) i his-asp phosphorelays (PR).
La tesi s’inicia revisant els mètodes usats per a l’estudi de principis de disseny en sistemes moleculars i alguns dels resultats obtinguts fins ara, i discutint la importància de l’estudi dels principis de disseny.
A continuació, explorem els proteomes seqüenciats de més de 7000 organismes i fem un inventari dels diferents tipus d’organització en operons i proteïnes multidomini dels dominis proteics que intervenen en TCS i PR. A partir d’aquesta informació deduirem alternatives existents en la natura pel que fa al disseny d’aquests circuits moleculars.
Per acabar, comparem mitjançant modelització matemàtica el comportament dinàmic de 3 circuits diferents de TCS, i trobem que un tercer component que modula l’activitat de la histidina quinasa o bé el response regulator pot modificar l’espai paramètric on el sistema es comporta de forma biestable.El objectivo principal de esta tesis es la búsqueda de principios de diseño que relacionen la estructura y la función de redes bioquímicas de transducción de señales, concretamente en two-component systems (TCS) y phosphorelays (PR). La tesis se inicia con una revisión de los métodos usados para el estudio de principios de diseño en sistemas moleculares y algunos de los resultados obtenidos hasta ahora, seguida de una discusión sobre la importancia del estudio de dichos principios de diseño. A continuación, exploramos los proteomas secuenciados de más de 7000 organismos y hacemos un inventario de los distintos tipos de organización en operones o proteínas de los dominios proteicos implicados en TCS y PR, con el objetivo de deducir el repertorio de estructuras existentes en la naturaleza para estos circuitos moleculares. Para terminar, comparamos mediante modelización matemática las propiedades dinámicas de tres circuitos distintos de TCS, y observamos que una proteína adicional que interacciona con la histidina quinasa o con el response regulator modifica el espacio de valores de los parámetros del sistema en el cual existe biestabilidad.
The ultimate goal of this thesis is to set the stage for finding general design principles underlying the relationship between network design and network function in two-component (TCS) and His-Asp phosphorelay (PR) signal transduction systems. This thesis starts with a review of the methods for and results from the study of design principles in molecular systems, and a discussion about the importance of studying those design principles. Next, a survey of the fully sequenced and annotated genomes and proteomes of more than 7000 different organisms is performed in order to identify different types of organizations of the TCS/PR protein domains in operons and multidomain proteins. From this data, the existing diversity of TCS/PR circuit designs will be inferred. Finally, we compare through mathematical modeling the dynamic properties associated with three types of TCS circuit designs, and find that a third component that binds to and modulates the activity of either the sensor kinase or the response regulator can modify the parameter space in which bistability in the system’s response is possible.
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Sun, Daofeng. "GRADER, design and implementation of a component-based distributed system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ59341.pdf.
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Ramsey, Jamie L. "Phase optimised general error diffusion for diffractive optical component design." Thesis, University of Strathclyde, 2013. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=22722.
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Algorithms for developing Diffractive Optical Elements (DOEs) are improved to achieve real time holograms capable of switching at rates of 25frames/second or greater. A Phase Optimised General Error Diffusion (POGED) algorithm optimised for quality and speed of generation of diffractive elements is the main contribution of the research. Compared to Simulated Annealing algorithms, a fourfold improvement in the speed of generation is achieved. The algorithm is further enhanced to operate in the Fresnel region with high diffraction efficiency and Signal-to-Noise Ratio (SNR). A number of different target reconstructions are simulated to determine validity and performance of the algorithm. Diffractive optical elements are fabricated to verify performance and a free space optical beam steering application is defined to further validate a DOE generated by POGED. The performance of the diffractive optical elements is proven through the design and characterisation of a free space optical interconnect amenable to harnessing the fast switching speeds of liquid crystal spatial light modulators.
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Kyaw, Phyo. "Attribute based component design : supporting model driven development in CbSE." Thesis, Durham University, 2007. http://etheses.dur.ac.uk/2338/.
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In analysing the evolution of Software Engineering, the scale of the components has increased, the requirements for different domains become complex and a variety of different component frameworks and their associated models have emerged. Many modern component frameworks provide enterprise level facilities and services, such as instance management, and component container support, that allow developers to apply if needed to manage scale and complexity. Although the services provided by these frameworks are common, they have different models and implementation. Accordingly, the main problem is, when developing a component based application using a component framework, the design of the components becomes tightly integrated with the framework implementation and the framework model is embedded in the component functionality, and hence reduces reusability. Another problem arose is, the designers must have in-depth knowledge of the implementation of a component framework to be able to model, design and implement the components and take advantages of the services provided. To address these problems, this research proposes the Attribute based Component Design (AbCD) approach which allows developers to model software using logical and abstract components at the specification level. The components encapsulate the provided functionality, as well as the required services, runtime requirements and interaction models using a set of attributes. These attributes are systemically derived by grouping common features and services from light weight component frameworks and heavy weight component frameworks that are available in the literature. The AbCD approach consists of the AbCD Meta-model, which is an extension of the บML meta-model, and the Component Design Guidelines (CDG) that includes core Component based Software Engineering principles to assist the modelling process for designers. To support the AbCD approach, an implementation has been developed as a set of plug-ins, called the AbCD tool suite, for Eclipse IDE. An evaluation of the AbCD approach is conducted by using the tool suite with two case studies. The first case study focuses on abstraction achieved by the AbCD approach and the second focuses on reusability of the components. The evaluation shows that the artefacts produced using the approach provide an alternative architectural view to the design and help to re-factor the design based on aspects. At the same time the evaluation process identified possible improvements in the AbCD meta-model and the tool suite constructed. This research provides a non-invasive approach for designing component based software using model driven development.
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Becker, Steffen. "Coupled model transformations for QoS enabled component-based software design." Karlsruhe Univ.-Verl. Karlsruhe, 2008. http://d-nb.info/990667650/04.
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Valentino, Eric. "The Design of Passive Networks with Full-Wave Component Models." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7979.
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In this thesis, the design of passive networks with the aid of full-wave simulation software and geometry-based models of lumped elements is investigated. This is done by examining the results of a number of simulation examples, as well as measured data from manufactured designs to compare against simulated equivalents. One such example is a chip antenna evaluation board design, in which the PCB, antenna, matching components and connector are all modeled. When measured, the simulation agreed with the board’s best matched frequency of 5.5 GHz to within 20 MHz. In another, a new antenna layout is generated from an existing evaluation design which, produced a match of about -15 dB at the design frequency with a similar bandwidth to that shown on the antenna datasheet on the first attempt at manufacture. Additionally, a statistical experiment was conducted in order to provide insight into the phenomenon of coupling between lumped components, and to define clearly when it starts to become an important effect to consider. For both chip capacitors and inductors, a behavioral model of how much crosstalk is present in a prospective circuit was developed which takes into account angle and distance between components, as well as case size. Finally, a simple discrete gradient descent was implemented in a commercial full-wave simulation software in order to assist in the refinement of designs containing 3-D geometry-defined component models.
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Adams, Leanne. "Animal welfare in South Africa : a multi-component programme design." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/15565.
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The ongoing international atrocity of animal abuse is a persistent and widespread social problem within human society. The maltreatment of animals, particularly in rural impoverished contexts in South Africa continues to be a pertinent challenge facing local animal welfare organisations. Upon identifying the need to improve the conditions of animals living in the Darling community, the Swartland SPCA approached the evaluator in order to design a plausible humane education programme. The evaluator began this research by reviewing the history and underlying principles of humane education, the efficacy of humane education, as well as formalised humane education programmes. Findings from the review revealed that humane education programmes hold diminished capability for the achievement of improved animal welfare when implemented in isolation. Although these programmes aim to affect behavioural change in order to respond to the problem of animal welfare, behavioural change is not easily achieved with a simple intervention such as humane education. Thus, designing a programme for the Swartland SPCA based solely on the logic of humane education with the expectation of behavioural change was deemed problematic. Subsequently, the evaluator endeavoured to develop a novel programme design to target the problem of animal welfare in Darling. Increasingly, research points to the need for a multifaceted approach in dealing with the problem of animal maltreatment due to its complex nature as well as the fact that it is based on a large number of confounding personal, familial, social, cultural and psychological factors. To address this need, the evaluator, in consultation with the SPCA, identified a number of possible reasons as to why the problem of animal welfare was a prevalent issue within the Darling community. This highlighted the need for additional interventions that could be employed holistically to alleviate the problem of animal abuse. Given that this research concerns the welfare of animals in terms of human-directed behaviours, it was decided that humane education as a form of intervention should be investigated further in its ability to affect attitudinal change in conjunction with violence prevention and peer education / modelling interventions as additional programme components. In order to affect interpersonal violence at a behavioural level, a violence prevention component was selected with the hope that reductions in interpersonal violence may extent toward the reduction of violence and abusive behaviour towards animals. Finally, peer education / role modelling was selected as a means of involving community members in the promotion of animal welfare via the concepts developed from the humane education programme component. Since an improvement of animal welfare conditions is essentially dependant on the performance of individual behaviours, grounding the programme in a theory of behaviour change was identified as an important first step in the programme design. As such, Ajzen's theory of planned behaviour was utilised as a behaviour change model in order to guide the programme's design framework and to ensure that the programme components corresponded with theoretically identified mechanisms of behavioural change. It was anticipated that utilising a multidimensional programme design rooted in a theory of behaviour change would increase the likelihood of achieving the link between attitudinal change and behavioural change. Therefore, this evaluation provides the Swartland SPCA with a broad-based programme design which provides a variable-oriented insight into the proposed mechanisms of change and can be utilised as a framework in the adaption of programme components. It is envisioned that this tool be used by the programme stakeholders to decide on intended outcomes, select the programme activities, and further define the design details thereof. A number of recommendations are also made in order to assist with the successful implementation of this programme and its sub-components in the long term. These include lobbying for the inclusion of animal welfare and violence prevention content as part of national school curricula, obtaining a violence prevention partner organisation to assist with certain implementation considerations, and finally the importance of continuous community engagement and involvement prior to and during the programme’s roll out.
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Hughes, Andrew John. "DynamiTE : a 21st-century framework for concurrent component-based design." Thesis, University of Sheffield, 2010. http://etheses.whiterose.ac.uk/10653/.
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The free ride for software developers is over. In the past, computer programs have increased in performance simply by running on new hardware with ever increasing clock speeds. Now, however, this line of development has reached its end and chip designers are producing new processors, not with faster clocks, but with more cores. To take advantage of the speed increases offered by these new products, applications need to be redesigned with parallel processing firmly in mind. The problem is that mainstream designs are still inherently sequential. Concurrency tends to be an afterthought that may be useful to gain a performance boost, not an essential part of the design process. The current vogue for object-oriented designs tends to also have the side-effect of making them heavily data-oriented which doesn't scale well; each shared element of data has to be protected from simultaneous access, resulting in operations becoming sequential again. In addition, the usual methods for protecting data tend to be very low-level and error-prone. In this thesis, we introduce a new design method whereby applications are constructed from small sequential tasks connected by intercommunication primitives. Our approach is based on a two-stage process; first, the individual tasks are created as independent entities and tested with appropriate inputs, then secondly, the communication infrastructure between them is developed. We provide support for the latter via the DynamiTE framework, which allows the interactions to be defined using the terms of a process calculus. Depending on the developer's background, they can treat this as just another API, as a design pattern or as an algebraic expression which can be property checked for issues such as deadlocks. Either way, the communication layer can be developed, tested and evaluated separately from the tasks once it is known how the tasks will interface with one another. To supplement DynamiTE, we define our own process calculus, Nomadic Time, using a carefully chosen novel selection of constructs. Among the features of the calculus are the ability to perform communication both locally (one-to-one) and globally (one-to-many), and the flexibility to change the location of tasks during execution. Security is paramount to the design of Nomadic Time and migratory operations can be limited in two ways; by simple enumeration of possibilities or by the optional typing of constructs to allow restriction on a task-by-task basis. While it can't eradicate all the problems inherent in designing concurrent applications, DynamiTE can make things easier by reducing the dependency on shared resources and enhancing the reusability of concurrent components.
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Chesney, James R., Nicholas J. Speciale, and Anil K. Agrawal. "Design of the TOPEX-NFEP Utilizing the Functional Component Approach." International Foundation for Telemetering, 1989. http://hdl.handle.net/10150/614728.
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International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, CaliforniaTOPEX/POSEIDON is a joint American/French Ocean Topography Experiment undertaken by the National Aeronautics and Space Administration (NASA) and Center National d'Etudes Spatiales (CNES) to acquire, process and verify altimetric sea surface height data so that mean and variable geotropic surface currents of the world's oceans can be mapped. This paper describes the functions and the architecture of the proposed front end to the Telemetry, Command and Communication System (TCCS) used for monitoring the spacecraft health, real time analysis required for supporting satellite analysis, collecting the telemetry data, and commanding the satellite. The system uses specialized hardware developed (herewith called as NFEP) at Goddard Space Flight Center to offload the Host processing and to support the data acquisition in a stand alone mode even in case of failure of the Host machine. The NFEP utilizes the semi-custom and custom very large scale integration (VLSI) devices, microprocessor control, and programmable logic designed to provide a generic NASA Communication (NASCOM) block processing and telemetry frame synchronization.
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Steyn, Diane. "Conceptualising design knowledge and its recontextualisation in the studiowork component of a design foundation curriculum." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/12015.
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Includes abstract.Includes bibliographical references.
Universities of Technology have traditionally prepared students for the world of work and their close ties with industry directly impact on vocational curriculum, which has to impart subject knowledge and specialized knowledge valued by industry, whilst simultaneously encouraging the acquisition of vocational identity. This study of a Design Foundation Course’s curriculum is located at a University of Technology which is currently undergoing a process of re-curriculation, which has initiated a process of examining subject knowledge and its structuring in various course’s curricula. In the light of these developments, an examination of the nature of design knowledge and the role of the foundation curriculum in the transfer of core disciplinary knowledge to underprepared students appeared both timely and necessary.
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Chia, J. T. B. "An integrated system for component modelling and materials selection in engineering design." Thesis, University of Nottingham, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357017.
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Roop, Parthasarathi Computer Science & Engineering Faculty of Engineering UNSW. "Forced simulation : a formal approach to component based development of embedded systems." Awarded by:University of New South Wales. School of Computer Science and Engineering, 2000. http://handle.unsw.edu.au/1959.4/20470.
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Application specific digital systems, called embedded systems, touch almost every aspect of modern human life. As a result, there is considerable interest in automating the design (called synthesis) of these systems. Further, given the time-to-market pressures and increasing system complexities, component reuse during synthesis is being touted as a key to success. This thesis proposes a formal framework for reusing system-level components during synthesis. Within the framework for component reuse, component matching is a key problem that must be addressed. Given the specification of a design function, and a device stored as a component in a library, component matching addresses the question of whether the device can implement the function. Often system-level components are multi-functional and generic, and it is rarely the case that the function is directly realizable by a device. Hence, an important aspect of matching is to decide whether the device can be dynamically adapted to match the function. This thesis proposes a formalization of the matching problem using formal models of the function and device, denoted by F and D respectively. D matches F provided there exists an interface I that adapts D dynamically to produce the same behaviour as F. None of the existing implementation verification techniques within formal methods can be used to test for the existence of an I between arbitrary pairs of F and D. In this thesis, a new simulation relation called forced simulation is proposed between the states of F and D. It is then formally established that the existence of a forced simulation relation is a necessary and sufficient condition for the existence of I for a pair of F and d. Two kinds of forced simulation are proposed, one each for synchronous and asynchronous interactions with the environment. Based on forced simulation, a polynomial time algorithm for automatic matching of F and D is also developed. The distinguishing feature of the algorithm is that when successful, it generates an interface that automatically adapts the device to behave like the function. The algorithm is illustrated by reusing two rogrammable components from Intel and some typical embedded controllers.
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Stambaugh, Craig T. (Craig Todd) 1960. "Improving gas turbine engine control system component optimization by delaying decisions." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/91787.
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Seddon, Andrew P. "The application of non-monotonic reasoning to the problem of component selection." Thesis, Keele University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260264.
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Rintamäki, Julia. "Development of Parking Brake Component : Product Development and Mechanical Design Process." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-20812.
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This report represents the bachelor thesis examination by Julia Kastehelmi Rintamäki. The examination has been performed during spring semester 2013 at Volvo Construction Equipment in Eskilstuna. This report, Development of parking brake component, describes the product development process of the parking brake component for articulated hauler, wheel loader and grader. Volvo CE has problems with the parking brake switch that exist today on articulated hauler, wheel loader and grader. The purpose of this project is to develop one common solution for the parking brake component for articulated hauler, wheel loader and grader. The secondary purpose is to find final concept proposal for each machine. Employees at the Volvo CE were interviewed; they were contacted via e-mail, phone calls and via meetings to get the information about the machines and the information around the parking brake component. Volvo CE databases were also used for gathering information about standards and pictures. Lots of different ideas were sketched and concept proposals were created with the aid of material from marketing analysis, competitor analysis, target group analysis, requirement specification, function analysis, standards and ergonomics. Eight concept proposals were chosen to be evaluated with QFD, Pugh’s matrix and FMEA. Two concepts were most suitable and developed further to three dimensional models with the aid of Solid Works. The different aspects were taken into account when designing and dimensioning the final concepts. Two models were created with the aid of plasticine for figuring out the ergonomics and dimensions of the product. DFM, DFA, DFE, D4S were used for taking into account costs, assembly, dimensions and environmental impacts of this product. One of the concepts could replace the existing parking brake switch and suit in different cabins because of its size and design. This concept can be located on vertical or on horizontal plane. The other final concept solution functions better for the articulated hauler on account of the double function with exhausting brake system activating before parking brake system. Suggestion for next steps for the project could be to make prototypes of the two concepts and test these components in real machines. Also interviewing users for further development of the final concepts and redesign if needed.
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Petersen, Lynn James. "Mast-antenna survivability : structural dynamic design analysis by component mode synthesis." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA280669.
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Deng, Jia-Yuan, and 鄧嘉源. "Component-Oriented Design Annotation and Evaluation." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/94559880502317204684.
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碩士國立交通大學
資訊科學與工程研究所
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Modern large-scale software systems bear complex internal structures to match the complexity of the problems they solve. To help coping with the structural complexity, numerous software engineering methods and techniques have been proposed and developed, including component-based development, design patterns, aspect-oriented programming, and so on. Despite these efforts, mastering software development skills in general and state-of-the-art techniques in particular continues to be a painstaking, try-and-error process for most, if not all, software developers. To help software developers make proper design decisions and/or understand the rationales behind complex software system design, we propose a simple conceptual framework in which software designs at various abstraction levels can be represented in terms of a generic component model that rests on the notion of polymorphism. In addition, we develop an assisting graphical annotation framework that is capable of visualizing various aspects of software designs, as well as a flexible metrics subsystem that can be customized to reveal design consistency in a more quantitative manner.