Nowadays there are several different types of ways to build a mobile application, through web technologies, or through mobile manufacturers’ languages. Thus, in this study we focus on the three major mobile application development strategies: Native, Hybrid, and Web to Native. This plurality of solutions renders the selection of a mobile application development strategy complex. Hence, this study aims at understanding how developers deal with the selection of a mobile development approach. This thesis analyses their behaviour thanks to a survey that collects crucial information about developers searching habits. The latter analysis concludes that general guidelines are not sufficient to provide a tailored and accurate selection of mobile application development approach. Therefore, this study aims at improving the activity of finding a mobile application development strategy. In addition to this, the past and current states of the subject are discussed in a critical manner, which therefore results in using an analytical research approach. Knowing the aforementioned, a design science research approach is used to outline the iteration processes that occurred during this study. Each step of the study is thoroughly treated thanks to a tailored design cycle. Consequently, a mobile development strategy-finding model has been built by combining literature review and survey’s results. This model highlights the importance of the criteria extracted from the literature review and the survey. To support and allow constant self-evolution of the model, a suggestion of web platform is proposed. Finally, this model has been compared with a Titanium model. The result of this comparison outlines that the model created in this study seems more usable because it comprises the three major mobile application development strategies whereas the Titanium model only focuses in native solutions and its own hybrid solution. Moreover, the Titanium model focuses on selling its product rather than showing why it is better than the other mobile application development strategies.

With increase of a web application popularity there was a necessity of simplification of their creation. In this paper ways of creation electronic data processing and opportunities of their simplification are investigated. Models of web application and tools for their creation are considered in the paper. Being based on this analysis the model which more all would approach for creation of the fast interface of data processing is offered. It is based on the user interface architecture separated from logic of activity. The offered model is realized by system of programs PHPForm on a platform Eclipse, the comparative analysis of the created and existing products is executed.

This work investigates entry barriers and approaches for facilitating end-user web application development with the particular focus on shaping web programming technology and tools according to end-users' expectations and natural mental models. My underlying assumption and motivation is that given the right tools and techniques even nonprogrammers may become successful web application developers. The main target audience for this research are "casual" webmasters without programming experience - a group likely to be interested in building web applications. As an important subset of web applications I focus on supporting the development of basic data collection, storage and retrieval applications such as online registrations forms, staff databases, or report tools. First I analyze the factors contributing to the complexity of web application development through surveys and interviews of experienced programmers; then I explore the "natural mental models" of potential end-user web developers, and finally discuss my particular design solutions for lowering entry barriers, as embodied by a proof-of-concept development tool, called Click. Furthermore, I introduce and evaluate the concept of "Design-at-Runtime" - a new technique for facilitating and accelerating the development-test cycle when building web-based applications. / Ph. D.

Context: Google App Engine (GAE) is a cloud computing platform, which allows developers to develop and deploy web based applications on it. It is composed of hundreds of thousands of commodity servers, distributed globally. GAE scales computing resources automatically, and developers only pay for the amount of time their application uses GAE resources. It imposes some restrictions and limitations on the design and development of applications such as execution time limit, lack of global transactions, way of communication with other applications etc. Objectives: In this study, we evaluate Google App Engine from enterprise application development point of view. We analyzed the behavior and architecture of Google App Engine to evaluate its feasibility for enterprise application development and compared it with Amazon Elastic Compute 2 (Amazon cloud service). We also studied Google App Engine storage system, Bigtable, which is a distributed non-SQL based data store. Methods: In this research study, we performed a literature study of the related cloud computing technologies and then a prototype enterprise application was developed for experiment. Results: Our literature study showed that Google App Engine has some limitations and restrictions on the development tools and environment. It does not provide support for global transaction, lacks strict consistency mechanisms, and provides highly virtualized and abstract view of the platform to the developer. Despite these limitations, the literature study and our experiment showed that Google App Engine is suited for applications with high read, searching and large write-stream operations. Google App Engine showed consistent performance as compared to Amazon Elastic Compute 2 in our experiment. Conclusions: We conclude that Google App Engine is a scalable platform while maintaining consistent performance but has some limitations due to its architecture and restrictions imposed on the development tools and environment. These limitations make it non-feasible for some types of enterprise applications, such as applications with high and intensive data computation requirement. But in other cases, such as simple data management and non-transactional applications, Google App Engine is an attractive platform.

Community-based open source (community source) has emerged as a new approach of developing enterprise software systems that requires participation and investments from partner institutions. This new approach provides the opportunity for institutions to pool resources together to achieve objectives that are hard to reach individually. In my dissertation, community-based development of enterprise applications is examined in a real world project called Kuali through the following three perspectives: technology perspective, economic perspective and management perspective. Under the technology perspective, the main research question is "how do service-oriented architectures enable technology flexibility in community source?" The Kuali case provides the initial context for understanding the basic concepts and insights surrounding the technological issues in community source. Under the economic perspective, the main research question is "why are institutions interested in investing in community source?" The case study and analytical modeling are used to better understand the decision-making process in community source. Under the management perspective, two main research questions are studied. The first research question is "what are the factors affecting the project success in community source development?" The case study, the surveys and the interviews are conducted to test the community source project success model. The second research question is "what are the motivations for outsourcing software development in community source?" Based on the results of our interview analysis, we propose a research framework for community source outsourcing. In the long term, I would like to develop a generic framework for describing the process of acquiring application software via either commercial, open source, or home grown approach. My research will concentrate on comparing these three application development approaches with a special focus on community source. The main contribution of my dissertation is to provide guideline for strategic planning and decision making in an institution. The finding in this dissertation research will provide significant insights on the selection of various software development approaches that are useful for both researchers and practitioners.

System Matylda was created in order to provide a database and web interface which allows sorting, filtering and comparing of products from food and drugstore industry. The goal of this thesis is to create a user friendly mobile application for this system. The application will be available for all today's major mobile platforms. The final application uses main features of the existing web application and also takes advantage of capabilities of modern mobile devices such as maps and user location. Some of the main features are searching for detailed product information, browsing discount leaflets, comparing discounts, creating shopping lists, authentication and more. The application can be used as a smart assistant which helps with shopping for food and drugstore products and can also save both time and money. Powered by TCPDF (www.tcpdf.org)

Title: MS SQL Application Development Framework Author: Bc. Marek Hanes Department: Department of Software Engineering Supervisor: RNDr. Michal Kopecký, Ph.D. Supervisor's e-mail address: kopecky@ksi.mff.cuni.cz Abstract: The thesis deals with a database application development and tries to find ways to optimize the most common problems encountered. The goal of this thesis is to design and develop a modular framework that simplifies the database application development and prevents inexperienced users from using unsafe SQL statements and/or expressions. The example of such a statement can be the insert statement without explicit column list, unsafe XPath expression, etc. The framework provides among others manipulation with history tables allowing versioning of data and reverting unwanted data changes asynchronous and parallel SQL execution support, error management and logging support, monitoring of schema changes as well as procedure and function debugging Together with means of data manipulation, the framework provides the simple way of publishing stored procedure as web service as well. The framework is accompanied by well-written programmers and users guide to allow its further development. Keywords: application development, framework, modular design, safe statements, constraints 1

The thesis examines how current mobile operating systems support context-aware applications and investigates the methods of mobile application debugging. The thesis points out what kind of problems need to be solved during debugging of context-aware applications. The primary goal of the thesis is to propose a debugging method which takes context information into account and to implement this method. The thesis contains a real world use case to demonstrate the proposed method.

With sales reaching $4.4 billion dollars in the first half of 2006 in the United States alone, and an estimated 80% of the world receiving coverage for their wireless phones in that year, interest in these devices as more than mere communicators has greatly increased. In the mid-to-late 1990s, digital cameras began to be incorporated into cellphones, followed shortly thereafter by Global Positioning System (GPS) hardware allowing location-based services to be offered to customers. Since then the use of mobile phone hardware for non-communication purposes has continued to expand. Some models, such as the Motorola V3M, have been specifically geared toward the storage and display of music and visual media, as well as receiving Internet broadcasts. It is perhaps surprising, therefore, that relatively little has been done from an academic standpoint to provide a qualitative and comprehensive method of evaluating the performance of mobile phones regarding their ability to function as computing devices. While some manuals do offer comparisons of Application Programming Interfaces (APIs) that aid in the development of cellphone applications, little documentation exists to provide objective measurements of performance parameters. This dissertation proposes a framework for evaluating the performance of mobile phones from a computational angle, focusing on three criteria: the processing power of the Central Processing Unit (CPU), data transfer capabilities, and the performance of the phone's GPS functionality for the appropriation of geographic location data. Power consumption has always been a major source of interest in the study of computer systems, and the limited hardware resources of mobile devices such as laptop computers, Personal Data Assistants (PDAs) and cellular telephones makes this a key concern. The power consumption factors associated with operation are therefore considered alongside the three core criteria being studied in this framework. In addition to framework design, software tools for the evaluation of cellphones were also developed, and these were applied to a test case of the Sanyo SCP-7050 model. This provides an example of the utility of the framework in evaluating existing phone models and a foundation for the assessment of new models as they are released.

The purpose of this research is to explore the business strategies of a firm seeking to develop and profitably market a mobile smartphone application to understand how small, digital entrepreneurships may build sustainable business models given substantial market barriers. Through a detailed examination of one firm’s process to try to commercialize their mobile app, we identify various business model decisions and marketing strategy approaches that hindered the company’s efforts. The case study describes two distinctly different business models adopted in succession, as well as the various adjustments the firm makes to its target market, distribution and pricing approach that led to their current strategy. This research looks closely at business-to-business-to-consumer distribution arrangement for mobile apps and in doing so challenges the rising positive bias that exists for the app store as the dominant actor in the mobile value chain. For practice, this paper suggests unanticipated hurdles small digital entrepreneurs may face if they rely heavily on mobile advertising and the app store to launch and sustain their business.