Performance, scalability and reliability issues in web applications

Purpose– The primary purpose of this paper is to present a comprehensive strategy for performance, reliability and scalability (PSR) testing of multi-tier web applications.Design/methodology/approach– The strategy for PSR testing is presented primarily through examination of the intangible knowledge base in the PSR testing field. The paper also draws on relevant recent work conducted in the area of software performance evaluation.Findings– The study revealed that appropriate testing procedures are critical for the success of web-based multi-tier applications. However, there was little academic work that collectively focused on PSR testing issues. This paper provides step-by-step testing procedures to ensure that web-based applications are functioning well to meet user demands.Research limitations/implications– Given the rapid changes in technology and business environments, more applied research will be needed in the area of PSR testing to ensure the successful functioning of web-based applications. For future studies, structured interviews or case-study methods could be employed to present the views of online companies.Originality/value– This paper provides a comprehensive strategy and the suggested steps for managers and technical personnel to ensure that the multi-tier, web-based applications are effective, scalable and reliable

Sistem Lelang Online Berbasis Web

Intisari---Perkembangan teknologi informasi pada saat ini telah berkembang sangat pesat. Salah satu manfaat dari penerapannya digunakan didalam dunia perdagangan untuk membantu proses lelang atau jual beli barang  secara online agar berjalan efektif dan efisien. Sistem lelang online Berbasis Web merupakan  sebuah aplikasi berbasis web yang dibangun untuk memudahkan kita untuk melakukan proses lelang atau jual beli barang. Aplikasi ini dibangun dari bahasa pemrograman PHP dengan metode pengembangan modified waterfall. Proses tahapan pengembangan ini terbagi menjadi enam tahapan, yaitu: analisa kebutuhan, perancangan, implementasi, pengujian dan pengembangan pada sistem. Pada tahap pengujian dilakukan uji fungisonalitas dengan menggunakan metode black box testing, yaitu menguji fungsi dari aplikasi yang telah dibangun apakah sudah sesuai dengan kebutuhan. Dari hasil pengujian menunjukkan aplikasi berjalan dengan baik dan memiliki waktu proses yang baik. Kata kunci ---Sistem lelang online, Modified waterfall ,PHP, Web,  Black box testing.   Abstract---Developments in information technology today has grown very rapidly. One of the benefits of application used in the world of commerce to assist the process of auction or purchase items online in order to run effectively and efficiently. Online Web Based Auction System is a web-based application built to allow us to conduct the auction process or the buying and selling of goods. This application is built on the PHP programming language with a modified waterfall development methods. Stages of the development process is divided into six stages, namely: requirements analysis, design, implementation, testing and development of the system.The phase fungisonality is tested using black box testing, ie testing the functionality of the applications that have been built if it is in accordance with the requirements. The test results show the application runs well and has good processing time. Keywords---Online Auction System, Modified Waterfall, PHP, Web, Black Box Testing

PERFORMANCE EVALUATION ON QUALITY OF ASIAN AIRLINES WEBSITES – AN AHP PPROACH

In recent years, many people have devoted their efforts to the issue of quality of Web site. The concept of quality is consisting of many criteria: quality of service perspective, a user perspective, a content perspective or indeed a usability perspective. Because of its possible instant worldwide audience a Website’s quality and reliability are crucial. The very special nature of the web applications and websites pose unique software testing challenges. Webmasters, Web applications developers, and Website quality assurance managers need tools and methods that can match up to the new needs. This research conducts some tests to measure the quality web site of Asian flag carrier airlines via web diagnostic tools online. We propose a methodology for determining and evaluate the best airlines websites based on many criteria of website quality. The approach has been implemented using Analytical Hierarchy Process (AHP) to generate the weights for the criteria which are much better and guarantee more fairly preference of criteria. The proposed model uses the AHP pairwise comparisons and the measure scale to generate the weights for the criteria which are much better and guarantee more fairly preference of criteria. The result of this study confirmed that the airlines websites of Asian are neglecting performance and quality criteria

Improving Collaborative Drawing using HTML5

This research looks into improving online web-based collaborative drawing using HTML5. Although many systems have been developed over a number of years, none of the applications released have been satisfactory for many artists; the core drawing experience was too different from a stand-alone drawing applications. Stand-alone drawing applications have better freedom of control with functions like undo and allow artists to work efficiently with hotkeys. The advent of the HTML5 Canvas Element and Websockets in recent browsers has provided new opportunities for collaborative online interaction. This research used an incremental development approach to build a prototype HTML5 drawing application providing new functionality for online collaborative drawing. The project was supported by two experienced artists throughout investigation, design, implementation and testing. The project artists helped validate design decisions and evaluate the implementation. As a result, a robust HTML5 collaborative drawing application was built. The prototype contains core drawing functionality that existing applications did not. Features include: undo and redo, free canvas transformation, complex hotkey interaction, custom canvas size support, colour wheel, and layers. All these features work smoothly in a fully synchronized network environment under a client-server model. The collaboration system uses an authoritative server structure with local prediction and re-synchronization to hide latency. Although the result is only a prototype, the evaluations from the project artists were very positive. Once more functionality targeted towards social interaction is built, the prototype will be ready for mass public testing. Although there are some issues caused by the immaturity of HTML5 technology, this project affirms its capability for collaborative web applications

Development of an innovative technology based youth passenger safety program - an evidence-based approach

Young drivers are overrepresented in motor vehicle crash rates, and their risk increases when carrying similar aged passengers. Graduated Driver Licensing strategies have demonstrated effectiveness in reducing fatalities among young drivers, however complementary approaches may further reduce crash rates. Previous studies conducted by the researchers have shown that there is considerable potential for a passenger focus in youth road safety interventions, particularly involving the encouragement of young passengers to intervene in their peers’ risky driving (Buckley, Chapman, Sheehan & Davidson, 2012). Additionally, this research has shown that technology-based applications may be a promising means of delivering passenger safety messages, particularly as young people are increasingly accessing web-based and mobile technologies. This research describes the participatory design process undertaken to develop a web-based road safety program, and involves feasibility testing of storyboards for a youth passenger safety application. Storyboards and framework web-based materials were initially developed for a passenger safety program, using the results of previous studies involving online and school-based surveys with young people. Focus groups were then conducted with 8 school staff and 30 senior school students at one public high school in the Australian Capital Territory. Young people were asked about the situations in which passengers may feel unsafe and potential strategies for intervening in their peers’ risky driving. Students were also shown the storyboards and framework web-based material and were asked to comment on design and content issues. Teachers were also shown the material and asked about their perceptions of program design and feasibility. The focus group data will be used as part of the participatory design process, in further developing the passenger safety program. This research describes an evidence-based approach to the development of a web-based application for youth passenger safety. The findings of this research and resulting technology will have important implications for the road safety education of senior high school students

Dealing With Digital Academic Dishonesty

For some time, universities have been concerned about digital academic dishonesty, particularly with respect to plagiarized term papers and reports. Recently, many universities have adopted classroom management software, such as Blackboard ™or WebCT™. These classroom management applications afford faculty and students many additional electronic capabilities, including easy posting of class notes or presentation files for downloading, collection of student assignments in digital drop boxes, online testing, chat rooms, and so forth. The inventive student intent on earning an acceptable course grade may use classroom management software, email, and the Web in ways that violate academic integrity standards. Now, in addition to the problem of electronically plagiarized term papers and reports, students are discovering ways to cheat in online and computer-based testing

Sport Reservation System With Decision Support System Features For Sport Complex of Universiti Utara Malaysia

This project presents a web based study highlighting the best practices in designing and building a prototype. It used web-based application in a system which includes both an online reservation system for the sport activities, and DSS to help the manager of the sport complex. This project used object-oriented analysis and design (OOAD) methodology, and UML in designing and developing a prototype. JSP and MYSQL etc. provided adequate support for building a prototype. After developing the prototype, evaluation of it has been done by using usability testing through the distribution of questionnaires on a sample of users including the students and staff. An interview has been held also with the manager of the sport complex in UUM. The responds from the users show that our objectives have been met in this study. We concluded that online sport reservation system provides an opportunity to the users to be familiar with the web applications, and provides enhancement to the management of the sport complex through the use of a data-driven decision support system