Corine Cauvet

An Ontology-Based Support for Asset Design and Reuse

In the World-Wide Web context, availability of software components increases the possibility of applying a reuse approach in software development. Thus, component retrieval is a key problem, both for software industry and for end-users. Several problems should be solved: components formalisms are very different from one source to another, knowledge for guiding components retrieval is often poor and search process often misses. In this research, we propose to unify components formalisms and, then, to encapsulate components in a semantic layer. This layer, called ldquoasset Srdquo, aims at describing semantically software components for guiding their retrieval. We also introduce a search process based on exploitation of this semantic layer. Our proposal is based both on ontologies and user profiles. We think those concepts can increase efficiently the pairing of available software components and userspsila queries expressed during information systems design by reuse.

Towards services paradigm: principles and models

Service-oriented engineering is a new paradigm that makes use of services as basic constructs to support the development of distributed applications. The paper presents a metamodel for services. This metamodel is based on 5 principles: goal-orientation, variability, use of semantic, dynamic personalization and dynamic composition. A profiling mechanism is used to specify 3 models of services: one for business services, one for information systems engineering services and one for pedagogic services. The presentation of the metamodel is coupled with 2 metaprocesses: one for providing (i.e. designing and publishing) services and one for consuming (i.e. discovering and invoking) services. The objective of these proposals is to increase relevancy of services and reduce the gap between the description of services and requirements of their consumers.

An Ontology-Based Reuse Approach for Information Systems Engineering

In the world-wide web context, availability of software components increases the possibility of applying a reuse approach in software development. Thus, component retrieval is a key problem, both for software industry and for end-users, moreover for open source community which uses more and more components-based software engineering approaches.The OMG has defined a unified framework for reusable items (so-called ¿assets¿) descriptions. Even if this framework supports description of a large variety of components, it reduces retrieval aspects to keywords search without considering user¿s profile and user¿s need within the current task. We believe that the retrieval difficulty is related to the crucial problem of interaction between component providers and users (i.e. the consumers). This interaction can be supported and even automated by increasing the expressiveness of the language used for encoding component properties and formulating queries, enhancing therefore the quality of the retrieval. In this research, we propose to use common ontologies for representing user¿s profiles, user¿s needs and semantic knowledge of the components. These ontologies also support reasoning on components and matching of provided and required components. The approach makes use of business domain ontologies and ontology of the domain of information system engineering. The paper describes how these ontologies can be used both at design time for asset descriptions and user¿s profiles definition and at reuse time for matching user¿s requirements, user¿s profiles and asset descriptors.

Adaptation dynamique de processus métier. Application au circuit du médicament à l’AP-HM

Variability is inherent in health processes and the diversity of implementation cases implies the need to control the modeling and management of those processes as well as their adaptation to highly dynamic environments. Research conducted within the AP-HM fits into this problematic. It is applied to the medication circuit and has led to the proposal of the V-BPMI approach for the description, management and adaptation of business processes. This paper treats the adaptation and presents a solution for dynamic adaptation. Starting from a database of process lines and process variants, a new process is dynamically constructed and deployed in a specific environment. Intentional and contextual descriptions of processes are the key point of the approach. MOTS-CLES : Processus metier, processus de sante, variabilite des processus, ligne de processus, variante de processus, adaptation dynamique.