In recent years there has been great interest in implementing object recognition frame work on mobile phones. This has stemmed from the fact the advances in object recognition algorithm and mobile phone capabilities have built a congenial ecosystem. Application developers on mobile platforms are trying to utilize the object recognition technology to build better human computer interfaces. This approach is in the nascent phase and proper application framework is required. In this thesis, we propose a framework to overcome design challenges and provide an evaluation methodology to assess the system performance. We use the emerging Android mobile platform to implement and test the framework. We performed a case study using the proposal and reported the test result. This assessment will help developers make wise decisions about their application design. Furthermore, the Android API developers could use this information to provide better interfaces to the third party developers. The design and evaluation methodology could be extended to other mobile platforms for a wider consumer base. / by Vivek Kumar Tyagi. / Thesis (M.S.C.S.)--Florida Atlantic University, 2010. / Includes bibliography. / Electronic reproduction. Boca Raton, Fla., 2010. Mode of access: World Wide Web.

This study defines the systems development methodologies named agile methods and investigates the environmental conditions where agile methods are most suitable. A definition of agile methods was developed using an analytical comparativeframework to investigate five of the earliest published agile methods; Dynamic SystemsDevelopment Method, Extreme Programming, Scrum, Adaptive Software Development,and Crystal Methods. The framework decomposed each method into its componentparts; philosophy, models, techniques, tools, scope, outputs, practice, and the extent towhich the method may be adapted to a situation. Based on this analysis and a literaturereview, a theoretical model of the target environment for agile methods was developed.This theoretical model is a proposed set of organisation, people, project, technology,and domain factors that relate to the successful use of an agile method.A mixed method research methodology was used. A qualitative design, consisting ofpositivist case studies, was used to test the theoretical model. Data was gathered fromnine software development projects, both agile and non-agile, using questionnaires andinterviews of project leaders. Then cross-case analysis was carried out on each projectfactor in the theoretical model. The relationship between environmental factors andagile method usage was investigated using non-parametric quantitative data analysis.This led to a revised model of the target environment for agile methods. The empiricaldata showed that specific organisational culture factors correlate with effective use of anagile method. These include the organisational characteristics of feedback and learning,teamwork, empowerment of people, collaboration, leadership, loyalty, and a resultsorientedculture that values entrepreneurship, innovation and risk taking.This research is significant for method users, those carrying out empirical research into agile methods, and those carrying out studies of systems development methodologies.

Free energy techniques provide the basis for an analysis of aspects of the liquid-vapour interface undertaken in this study. The main focus of this work is an extensive theoretical investigation into properties of the surface tension, including curvature dependence and supersaturation effects, using Monte Carlo computer simulation techniques.

While the focus of this work is on turbo equalization, there is also an examination of equalization techniques including MMSE linear and DFE equalizers and Precoding. The losses and capacity associated with the ISI channel are also examined. Iterative decoding of concatenated codes is briefly reviewed and the MAP algorithm is explained.

This thesis is an exploration of why the development of ICT (Information and Communication Technology) systems (IS) does not include more humanistic issues. I argue that this exclusion is one reason for the annoying situation of users and organizations: we are forced to deal with poorly designed systems that cause major frustration. In this reflexive investigation I present theories, data, analysis and arguments in the form of a theatrical script. With the theatre metaphor I aim to make visible the ideological elements not only within IS acquisition but also within research, in particular HCI research. The thesis includes three studies performed during 2003-2005: two interview studies with a total of 47 interviews, and one field study with extensive observations and 22 interviews. The material was analyzed with a focus on power structures and the ways common sense is constructed within the discourses of Information Systems Development (ISD). The theoretical perspective is inspired by discourse theory, social constructionism, and reflexivity. The main argument is that ISD is pervaded by a truth construct in which rationality and logic constitutes the norm and everything else, including humans, becomes subordinate. In my analysis of the research material I see that user participation through informal “methods” and user representation does not lead to meaningful involvement; instead it adds to the power structures in which ICT expertise and technology determination are hegemonic. I distinguish several significant subjects within the discourses of ISD and argue that the ways they are construed and positioned relate to certain functions; for example ICT experts as authority and users as trouble makers both function to exclude users from ISD. HCI has an important role as a resistive discourse but to increase its impact we must refocus our attention on systems development, directing our efforts towards the procurers of ICT systems instead of trying to integrate human perspectives into the functional paradigm. / QC 20100913

Syftet med studien är att undersöka prototyper i samband med systemutveckling, och då särskilt om agila utvecklingsmetoder har påverkat hur prototypning används.En genomgång av begreppet prototyp och närliggande begrepp görs för att klargöra vad som kan avses med prototyper inom systemutveckling. En översikt över olika synsätt på prototyper och deras användning presenteras, och leder vidare till en teoretisk modell för prototyper i systemutveckling.Systemutvecklare och experter intervjuas för att bringa klarhet i begreppen och ta reda på hur prototyper används i systemutvecklingsprojekt i praktiken. Utifrån detta material presenteras en vidareutveckling av den första teoretiska modellen. Problemrymd och lösningsrymd hör till modellens centrala begrepp.Studien visar att agila utvecklingsmetoder påverkar arbetet med prototyper i riktning mot att utföra prototypning i det ordinarie utvecklingsspåret samt att hämta in regelbunden återkoppling på prototyper från användare och andra intressenter under hela systemutvecklingsprojektets gång. Sådana arbetssätt visade sig också förekomma inom den praktiska systemutvecklingen.

<p>Information systems are getting more and more multimedia-based as well as network-based. This evolution, as well as an increased rate of change, put new demands on methods and competencies required for developing future information systems. In this work, we give an overview of the different types of information systems and methods for information systems development, especially with respect to multimedia aspects. Multimedia systems development is discussed particularly with respect to the dual processes of software engineering and content development. Possible future directions are pointed out, in which information systems development seems to become an even more multidisciplinary effort. As a result we present a list of competencies required for multimedia information systems development as well as possible research areas of interest. These research areas cover the following issues regarding the development of multimedia information systems: project management, conceptual modelling, content maintenance, requirement treatment and development approaches.</p>

<p>In the information systems development process there are important success factors. By doing an extensive literature survey we have found that these factors emerge mainly from organisational issues concerning the objective of the process and the stakeholders.One factor - to discuss the system, its subsystems and to define the system's boundary - is a prerequisite for all the others. Factors emerging from the objective are mainly about the objective being well analysed and defined, being accepted among the stakeholders and meeting business objectives. Factors emerging from stakeholders are mainly about involving the right stakeholders in the process, achieving a positive attitude and taking care of their needs about knowledge and confidence. Based on this we have developed a framework aiming to guide organisations in what considerations they should make before the project begins. As a result of our framework there will be both a clear objective, which support the business mission, as well as positive stakeholders to support the information systems development process.</p>

<p>As a means of addressing the failure rate of information systems Aggestam (2001) proposes a framework which aims to guide organisations in the development of this type of software system. Software is a common concept today and can therefore be anticipated in contexts other than organisations. Examples of such contexts can be given as: embedded software, scientific software and personal computer software. The literature informs that 20% of these software projects are failures and 46% experience cost and schedule overruns. In an attempt to address this failure rate the aim of this report will be to investigate if the framework proposed by Aggestam (2001) can also be applied in this type of software project.</p><p>Through a comprehensive literature study success factors pertaining to software projects where an organisational information system has not been built have been identified. These factors have then provided the foundation for a deeper interview study. It has been shown that the framework displays promising potential for use in this type of software project. A stable groundwork has also been laid for continued research in this area.</p>

<p>Syftet med studien är att undersöka prototyper i samband med systemutveckling, och då särskilt om agila utvecklingsmetoder har påverkat hur prototypning används.En genomgång av begreppet prototyp och närliggande begrepp görs för att klargöra vad som kan avses med prototyper inom systemutveckling. En översikt över olika synsätt på prototyper och deras användning presenteras, och leder vidare till en teoretisk modell för prototyper i systemutveckling.Systemutvecklare och experter intervjuas för att bringa klarhet i begreppen och ta reda på hur prototyper används i systemutvecklingsprojekt i praktiken. Utifrån detta material presenteras en vidareutveckling av den första teoretiska modellen. Problemrymd och lösningsrymd hör till modellens centrala begrepp.Studien visar att agila utvecklingsmetoder påverkar arbetet med prototyper i riktning mot att utföra prototypning i det ordinarie utvecklingsspåret samt att hämta in regelbunden återkoppling på prototyper från användare och andra intressenter under hela systemutvecklingsprojektets gång. Sådana arbetssätt visade sig också förekomma inom den praktiska systemutvecklingen.</p>