CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / AplicaÃÃes Web que possuem grande nÃmero de pÃginas, cujos conteÃdos sÃo dinamicamente extraÃdos de banco de dados, e que requerem intenso acesso e atualizaÃÃo dos dados, sÃo conhecidas como âdata-intensive Web applicationsâ (aplicaÃÃes DIWA). Neste trabalho, os requisitos de conteÃdo de cada pÃgina da aplicaÃÃo sÃo especificados atravÃs de uma visÃo XML, a qual denominamos VisÃo de NavegaÃÃo (VN). Consideramos que os dados das VNs estÃo armazenados em um banco de dados relacional ou XML. Nesse trabalho, propomos um enfoque para especificaÃÃo e geraÃÃo de VNs para aplicaÃÃes Web cujo conteÃdo à extraÃdo de uma ou mais fontes de dados. No enfoque proposto, uma VN à especificada conceitualmente com a ajuda de um conjunto de Assertivas de CorrespondÃncia, de forma que a definiÃÃo da VN pode ser gerada automaticamente a partir das assertivas da visÃo. / Web applications that have large number of pages, whose contents are dynamically extracted from one or more databases, and that requires data intensive access and update, are known as "data-intensive Web applications" (DIWA applications) [7]. In this work, the requirements for the content of each page of the application are specified by an XML view, which is called Navigation View (NV). We believe that the data of NVs are stored in a relational or XML database. In this work, we propose an approach to specify and generate NVs for Web applications whose content is extracted from one or more data sources. In the proposed approach, a NV is specified conceptually with the help of a set of Correspondence Assertions [44], so that the definition of NV can be generated automatically based on assertions of view.

The number of internet users is growing by the second and with an increase of internet users, there is also an increase of User-generated content. Web application that bases their buisness on User-generated content is often called by the name Collaborative Web Applications. There is a challenge for those types of applications to maintain high quality of content, since the amount of content that flows in is massive. Previous studies in the area propose that this challenge might be answered by a Web Reputation System. Previous studies has also proposed to divide Web Reputation System into various simple models. One of these models is karma, which is the focus in this report. Karma as a model aims to reward users who contribute content that is considered by other users as rewarding or entertaining. Through literature studies, guidelines on karmabased systems could not be found, which suggets that its has not previously been investigated. This made it a relevant problem for this report. The work has been carried out as a case study and used documents and a questionnaire to answer the research questions. Through data acquisition from both users of existing karma-based systems and a comparison of these existing system, it has resulted in a number of guidlines which are presented in this report. / Antalet internetanvändare ökar hela tiden och med en ökning av användare, tillkommer även en ökning av användargenererat innehåll. Webbapplikationer som baserar sig på användargenererat innehåll benämns som en ’Collaborative Web Application’ och det är en utmaning för dessa att bibehålla bra informationskvalité med tanke på mängden information som strömmar in. Tidigare studier inom området föreslår att ett ’Web Reputation System’ kan vara lösningen för att hantera detta. Tidigare studier har även valt att dela upp ’Web Reputation System’ i olika enkla modeller, där fokuset i denna studie har varit på karma. Karma syftar till att belöna användare som bidrar med innehåll som anses av användare som givande. Via litteraturstudier så kunde inte riktlinjer gällande karmabaserade system hittas, vilket föreslår att det inte tidigare har efterforskats. Detta gjorde att det blir ett relevant problem för detta arbete. Arbetet har genomförts som en fallstudie och använt sig av dokument och en enkätundersökning för att svara på frågeställningarna. Genom datainsamling både från användare av befintliga karma-baserade system och en jämförelse av befintliga karma-baserade system, så har det resulterat i ett antal riktlinjer som presenteras i detta arbete.

Software Testing plays a key role in Software Development. There are two approaches to software testing i.e. Manual Testing and Automated Testing which are used to detect the faults. There are numbers of automated software testing tools with different purposes but it is always a problem to select a software testing tool according to the needs. In this research, the author compares two software testing tools i.e. Apache JMeter and HP LoadRunner to determine their usability and efficiency. To compare the tools, different parameters were selected which guide the tool evaluation process. To complete the objective of the research, a scenario-based survey is conducted and two different web applications were tested. From this research, it is found that Apache JMeter got an edge over HP Loadrunner in different aspects which include installation, interface and learning.

Submitted in fulfillment of the requirements of the Master of Information and Communications Technology Degree, Durban University of Technology, Durban, South Africa, 2017. / The research reported in this dissertation focuses on the development of a web-based frugal information system (frugal IS) which supports financial management of very small enterprises (VSEs), with a special focus on their business transactions. In most developing countries, VSEs have some significant contributions at various socioeconomic objectives, such as fostering entrepreneurship and improving growth of employment. They represent an income opportunity to retrenched and retired entrepreneurs which is recognised to be crucial to the livelihood of many poor local households and local citizens. In addition, these enterprises have a remarkable role to play in the areas of employment and poverty alleviation. Despite this, the majority of VSEs in developing countries, especially those in rural regions are faced with miscellaneous issues and challenges, which could be ascribed to their resource scarcity. In particular, most VSEs are resource-constrained in terms of knowledge and information resources, financial resources and human resources. What also exacerbates their situation is the fact that the majority of VSEs are still ingrained in their traditional ways of running the business and they are unready to adopt new and innovative working methods. In particular, VSEs are still accustomed to manual paper-based systems which are monotonous, error-prone, highly fragmented and severely inefficient. Unfortunately, all this gravely challenges the growth and development of VSEs. In this dissertation, a concept of frugal innovation, precisely frugal IS, is applied to distinctively address specific and unique business needs of VEs in developing countries. A methodology that is employed in this research is called design science research methodology (DSRM). The DSRM helped to address the problem of VSEs through design, construction, utilization and evaluation of a web-based frugal IS prototype system. A novel system life cycle model that favours the notion of frugality was employed for the design and development of a web-based frugal IS. The evaluation of the prototype system and its design revealed quite interesting results. The design of a web-based frugal IS prototype system was characterized with low complexity which promoted reusability, maintainability and reliability. The evaluation of usability indicated that the system was fairly simple to use, reliable and effective in terms of managing financial information of VSEs. Based on the general findings of this research, the design and development of a web-based frugal IS for VSEs in developing countries promises to assist VSE owners to assess their profitability, improve their financial management, promote sound economic decisions and help them to avoid business failure. / M

This thesis is addressing the issue that we are not able to fully utilize the potential of all the data that the contemporary world around us is constantly producing. The goal of this thesis is to implement a Linked Data driven web application generator that allows lay users to generate web applications from multiple RDF data sources. The application generator automatically analyzes the data sources to help the user with the generation process. Each generated application can be configured and published. The generator contains a list of different types of applications that can be generated depending on the type of input data. This list can be extended and the generator works as a framework which simplifies the process of adding support for new types of applications and new types of data. The generator is also a platform. It allows users to create accounts to manage their published applications and it also features a catalog of published applications and a repository of publicly available data sources that any user can use to generate a new application. The generator is integrated into LinkedPipes Visualization tool. Powered by TCPDF (www.tcpdf.org)

A business process is a defined collection of linked structured tasks, activities, and decisions performed together to produce a desired set of results in order to achieve business goals on behalf of the organization. Companies are increasingly moving their business processes online using Business Process Management (BPM) tools and technologies. With BPM, online business processes are defined by an explicit business process model that flexibly combines and orchestrates forms delivered through a web browser to integrate tasks performed by people, and web services accessible through Internet protocols to integrate tasks performed by software. Often the approach to quality assurance for online business processes is similar to what would be done with any other web application. This is insufficient since it only provides rudimentary verification of single user behavior whereas the orchestration of tasks across many users and software systems can be quite complex. As well, a simple web application testing approach does not leverage the defined model for a business process to ensure consistency, completeness and enable automation. Nor will such an approach validate that a business process is contributing towards the achievement of business goals. A more systematic approach is required. This thesis proposes a quality assurance framework to provide a repeatable, systematic, cost-efficient approach to quality assurance for BPM. A prototype framework was implemented and evaluated using two case studies, including one case study that was developed in collaboration with a local hospital to support a business process for cancer care assessment.

Rich Internet Applications (RIAs) are a new generation of web applications that break away from the concepts on which traditional web applications are based. RIAs are more interactive and responsive than traditional web applications since RIAs allow client-side scripting (such as JavaScript) and asynchronous communication with the server (using AJAX). Although these are improvements in terms of user-friendliness, there is a big impact on our ability to automatically explore (crawl) these applications. Traditional crawling algorithms are not sufficient for crawling RIAs. We should be able to crawl RIAs in order to be able to search their content and build their models for various purposes such as reverse-engineering, detecting security vulnerabilities, assessing usability, and applying model-based testing techniques. One important problem is designing efficient crawling strategies for RIAs. It seems possible to design crawling strategies more efficient than the standard crawling strategies, the Breadth-First and the Depth-First. In this thesis, we explore the possibilities of designing efficient crawling strategies. We use a general approach that we called Model-based Crawling and present two crawling strategies that are designed using this approach. We show by experimental results that model-based crawling strategies are more efficient than the standard strategies.

The topic of the thesis is issue of security during the application development. The main emphasis is being placed on web applications. The goal is to define a framework for managing the life cycle of applications to meet the security minimum. The objectives of the work are achieved by study of available resources and their subsequent analysis. The target audiences are software developers interested in learning more about how to create secure applications. The work describes the areas that are crucial for security of applications. Work contains security standards which we can use for defining security requirements of applications. Furthermore, there are mentioned the most serious security vulnerabilities and ways how to avoid them. It describes issue of security testing as an important tool for verifying security. The main part of work is the chapter dealing with the way how to include the issue of security throughout the application life cycle.

The thesis describes the Meteor Platform and the process of real-time web application design and development. The objective is to provide information covering the technology behind real-time web applications and to describe the Meteor application design and development process utilizing the MMSP methodology. First part of the thesis defines what a real-time web application is and describes Node.js platform and javascript frameworks Mojito, Derby and Meteor. The second part deals with Meteor application design and development process and provides information about used architecture and components. The last chapter provides recommendation on Meteor application development and suitability of the framework for various types of applications, as well as utilization of the MMSP methodology for Meteor application development. The main output and benefit of the thesis is the real-time web application Chute Achiever, which can be used for educational purposes. This thesis is the first academic work about Meteor platform published at the University of Economics.

Master thesis deals with a comparison of two web application frameworks in PHP. The aim of this work is to provide a comprehensive view of the possibilities, differences and advantages of the selected frameworks. The main source for comparison is sample web applications that demonstrate these possibilities. For a comprehensive comparison, various criteria were chosen to analyze the properties of frameworks. These criteria are divided into five categories. Technology support examines the compatibility of framework for different versions of the platform. The most important and most widespread category is the analysis of options for creation of web applications, which discusses the most common tasks in developing applications and how frameworks approaches it. Other categories are design and architecture of framework, testing and general support for developers, which analyzes both online and offline sources of information used to learn and solve problems using the selected framework . Comparison results based on above mentioned criteria can help developers when choosing a modern web development framework for PHP platform.