Quality is a multidimensional concept that has different meanings in different contexts and perspectives. In the domain of Information system, quality is often understood as the result of an IS development process and as the quality of an IS product. Many models and frameworks have been proposed for evaluating IS quality. However, as yet there is not a commonly accepted framework or standard of...

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Rate adaptive multimedia streams offer significant system and client benefits over non-adaptive streams. These benefits come at the price of increased complexity in providing adequate network support and difficulty in understanding how rate adaptation protocols affect client perceived QoS. In this paper we define quality of service in terms of the mean rate seen by the client. We identify an in...

This paper deals with the quality of e-learning at AL-Balqa Applied University – Jordan. It discusses the already developed measures on the basis of statistical analysis for data gathered from e-learning elements which evaluates the quality of e-learning applications and systems. The main contribution of the paper is the proposal for the quality metrics with the features concerning elearning pl...

Speckle can seriously degrade image quality in laser-illuminated projection displays. Various solutions appropriate to small microdisplay-based projectors are presented. Illumination optical system and projection optical system design are discussed in order to better understand the critical constraints of size, power consumption, optical efficiency, and performance. DYOPTYKA’s innovative soluti...

Web sites have been extensively used to provide information to consumers. While practitioners and researchers have proposed different criteria for effective Web site design based on common sense, intuition, and rules-ofthumb, effective Web site design focusing on the quality of the information it provides has rarely been studied. In this research, we propose a framework and develop an instrumen...

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Abstract Cost of software quality (CoSQ) is an accounting technique that is useful to enable our understanding of the economic tradeoffs involved in delivering good quality software. Commonly used in manufacturing, its adaptation to software offers the promise of preventing poor quality, but, unfortunately has seen little use to date. This article discusses the rationale and context for using C...

One method suggested for improving software quality has been that of collecting metric scores for a given design, and refactoring in response to what are deemed to be unsatisfactory metric values. More recently, the usage of design patterns has been recommended to promote adaptable designs, so reducing maintenance e€ort. These two approaches are therefore observed to e€ectively have the same ge...

The most important measure that must be considered in any software product is its design quality. Measuring of the design quality in the early stages of software development is the key to develop and enhance quality software. Research on object oriented design metrics has produced a large number of metrics that can be measured to identify design problems and assess design quality attributes. Ho...