Web Service Standards Taxonomy

The objective of this tutorial is to survey major Web service standards (WSS) in order to develop a taxonomy that will assist adapting organization in identifying individual standards as well as the interrelationships among these standards, and the relevancy of these standards to a particular WS implementation. Since multiple standards exist, a generic taxonomy is constructed first that shows basic functions supported by different standards basically XML and J2EE-based standards. Standards are then mapped into these basic functions which cover single WS or composite WS. Furthermore, the tutorial delineates standards related to internet and intranet based applications, such as e-business, virtual organizations, supply chain, and enterprise computing. Related standards, such as grid and portal are also described. Finally, a WS maturity model is mapped into this taxonomy to assist adapting organizations in charting a direction towards proper progression for optimal and successful deployment of WS projects. This tutorial should assist organizations first to develop an overview of standards associated with WS before embarking on a major WS project

A three-level specification approach for an environment of software agents and web services

This paper presents an approach for the specification of a software agent-based and Web service-oriented environment. A software agent is an autonomous entity that acts on user’s behalf. Whereas a Web service is an accessible application that other applications and humans can discover and trigger. Users in collaboration with their agents compose Web services into high-level business processes denoted by composite services. The participation of Web services in a composite service is based on several selection criteria such as the execution cost of a Web service and the location of the resources on which a Web service will be performed. Prior to that selection, the specification approach puts forwards three levels: intrinsic, organizational/functional, and behavior. Besides the specification approach, the composition of Web services is illustrated in this paper with service chart diagrams.Zakaria Maamar, Quan Z. Sheng, Boualem Benatallah, and Ghazi Al-Khatibhttp://www.elsevier.com/wps/find/journaldescription.cws_home/621289/description#descriptio