© 2002 Canadian Medical Association or its licensors Complaints: (1) A reviewer calls to say he will never review another paper for CMAJ because we accepted a paper he had urged us to reject in view of the authors’ undisclosed and close relationship with a pharmaceutical company. (2) A letter writer complains that we edited her letter so severely that the main point was utterly lost. (3) An aut...

As the e-commerce environment becomes more pervasive and dynamic, coordination among companies are required more frequently than ever. We give the definition of coordination as well as the model of ecommerce based on web; the communication in e-commerce is described; the function of coordination, include the architecture, execution and control of coordination is discussed. At the same time, we ...

quality of service (qos) is an important issue in the design and management of web service composition. qos in web services consists of various non-functional factors, such as execution cost, execution time, availability, successful execution rate, and security. in recent years, the number of available web services has proliferated, and then offered the same services increasingly. the same web ...

This study reports the results of an “online” census of the number and character of the publicly accessible Web sites of Fortune 500 companies. The results indicate that approximately 25% of the companies have Web sites. In accord with popular opinion, the sites are used primarily as the electronic equivalent of an annual report (first level effect). The census also indicates that virtually non...

The revolutionary approach of manufacturing systems design is changing from an isolated island of resources and data to a dynamic collaborative alliance of companies best known as a virtual enterprise. The virtual enterprise can be considered as a scenario that emerges in a world where individual companies come together as a coalition to fulfill the market requirements. Web Services technology ...

In this paper we describe workflow analysis f o r web publishing based on a general stage-activity process model. Using a case study approach, existing web publishing methods used by major Hong Kong ICP companies have been evaluated, Based on the evaluation results and our observations, issues and problems of the existing methods are identified. A general process model, called the stage-activit...

web servers, session-based workload, performance, simulation, overloaded server, admission control mechanism, web quality of service In this paper, we introduce a new, session-based workload for measuring a web server performance. We define a session as a sequence of client's individual requests. We then measure server throughput as a number of successfully completed sessions. Using a simulatio...

Registries play a key role in service-oriented applications. Originally, they were neutral players between service providers and clients. The UDDI Business Registry (UBR) was meant to foster these concepts and provide a common reference for companies interested in Web services. The more Web services were used, the more companies started create their own “local” registries: more efficient discov...