Data Integration presents a core issue in the Palestinian e-Government Technical Framework. The currently used data integration model relies on the Integrated Central Database which lacks quality attributes such as: interoperability and flexibility. We purpose a SOA-based approach for data integration that achieves the above attributes. We present and analyze the current architecture and implem...

Automating Service Oriented Architectures by augmenting them with semantics will form the basis of the next generation of computing. Selection of service still is an important challenge, especially, when a set of services fulfilling user’s capabilities requirements have been discovered, among these services which one will be eventually invoked by user is very critical, generally depending on a ...

Importance-performance analysis (IPA) is a simple but effective means of assisting practitioners in prioritizing service attributes when attempting to enhance service quality and customer satisfaction. As numerous studies have demonstrated, attribute performance and overall satisfaction have a non-linear relationship, attribute importance and attribute performance have a causal relationship and...

Most decision making problems can be considered as multiple criteria decision making (MCDM) problems, and should be solved by MCDM method. The main advantage of MCDM is that it can give managers many dimensions to consider related elements, and evaluate all possible options under variable degrees. This paper applied fuzzy set theory and a compromised MCDM method VIKOR method to evaluate the ser...

Importance-performance analysis (IPA) is a simple but effective means of assisting practitioners in prioritizing service attributes when attempting to enhance service quality and customer satisfaction. As numerous studies have demonstrated, attribute performance and overall satisfaction have a non-linear relationship, attribute importance and attribute performance have a causal relationship and...

Many service providers want to control access to their services and offer personalized services. This implies that the service provider requests and stores personal attributes. However, many service providers are not sure about the correctness of attributes that are disclosed by the user during registration. Federated identity management systems aim at increasing the user-friendliness of authen...

One of the challenging problems that Web service technology faces is the ability to effectively discover services based on their capabilities. An approach is proposed to tackle this problem in the context of description logics. The semantic information of a Web service can be described with three factors: functional capabilities, action and non-functional attributes. We formalize these three fa...

This paper presents a qualitative analysis of security aspect of Web-Based applications that utilize Service Oriented Architecture (SOA). The architectural solutions that address security requirements are examined and compared with other quality attributes relevant to web-based systems. More specifically, a trade off analysis based on ATAM performed to show the correlation between security and ...

The evolution of the Internet and the competitiveness among companies were factors in the explosion of Web services. Web services are applications available on the Internet each performing a particular task. Web users often need to call different services to achieve a more complex task that can’t be satisfied by a simple service. And users often prefer to have the best services responding to th...