Conference on Leading Web in Concurrent Engineering 

About: Conference on Leading Web in Concurrent Engineering is an academic conference. The conference publishes majorly in the area(s): Concurrent engineering & New product development. Over the lifetime, 91 publications have been published by the conference receiving 307 citations.

Towards a standard protocol for community-driven organizations of knowledge

Abstract: This paper deals with the “Web 2.0”, where every user can contribute to the content, “harnessing collective intelligence”. After studying what makes the success of services like Google Base, Del.icio.us and the Open Directory Project, we propose a unifying “REST” protocol for this kind of community-driven organizations of knowledge. The aim is to make the collaboration possible beyond the boundaries of the software and of the resulting communities.

A formal model for Web service composition

Abstract: Automated composition of Web services or the process of forming new value added Web services is one of the most promising challenges in the semantic Web service research area. Semantics is one of the key elements for such a task. Even if semantics enables Web service to describe their capabilities and processes, there is still some work to be done. Indeed Web services described at functional level need a formal model to perform the automated composition of Web services. The suggested model (i.e. Causal link matrix) is a necessary starting point to apply problem-solving techniques such as regression-based search for Web service composition. The innovative model supports a semantic context in order to find a solution for an AI planning-oriented Web service composition.

A Knowledge-driven Data Warehouse Model for Analysis Evolution

Abstract: A data warehouse is built by collecting data from external sources. Several changes on contents and structures can usually happen on these sources. Therefore, these changes have to be reflected in the data warehouse using schema updating or versioning. However a data warehouse has also to evolve according to new users' analysis needs. In this case, the evolution is rather driven by knowledge than by data. In this paper, we propose a Rule-based Data Warehouse (R-DW) model, in which rules enable the integration of users' knowledge in the data warehouse. The R-DW model is composed of two parts: one fixed part that contains a fact table related to its first level dimensions, and a second evolving part, defined by means of rules. These rules are used to dynamically create dimension hierarchies, allowing the analysis contexts evolution, according to an automatic and concurrent way. Our proposal provides flexibility to data warehouse's evolution by increasing users' interaction with the decision support system.

A Mapping from Pi-Calculus into BPEL

Abstract: In the world of Web services composition languages, Business Process Execution Language for Web Services (BPEL or BPEL4WS), proposed by major vendors such as BEA, IBM or Microsoft has become the standard. However, its definition has not been formalized and this is penalizing for verification of correct behaviour of business processes. Several works have been dedicated to this purpose. Petri nets have been widely used to model Web services composition, but the π-calculus language seems to be more adequate for several reasons. For this process algebra, techniques and tools exist which make it possible to model-check any specification. To do this, one can map BPEL programs to π-calculus process and then perform verification. A more promising way is to directly build π-calculus model, to check it and then map it to a BPEL process model. This papers describes a mapping from π-calculus onto BPEL process model.

An assured environment for collaborative engineering using web services

Abstract: This paper describes an application of the TrustCoM environment to support secure contract based collaboration between companies using managed web services. The application scenario describes a consortium of engineering companies that seek to upgrade a customer's fleet of aircraft to provide in-flight internet capabilities. The environment supports the consortium to collaborate so as to take advantage of the market opportunity. In order to reduce the risks of collaboration, the environment provides assurances of the past performance of consortium members, of the current performance of each member to meet their contract and service level agreements, and the secure control of access to resources. As a result of a member's performance, the consortium dynamically reconfigures itself and initiates a collaborative business process that enlists new members to join and contribute to the negotiations with the customer.