Sylvain Aymard

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The increasing volume of information available on the Internet today is a problem for health care professionals who want to access rapidly data of high quality. Usual search engines and directories are not sufficient to satisfy their needs. Moreover, the information published by Web sites is not always guaranteed. Some institutions around the word deal with(More)
Information is usually available in heterogeneous data format and various legacy sources. Interoperability appears to be a major approach for applications to access information. The project ARIANE is devoted to provide end-users with an easy to use and natural access to information databases. In this frame we defined actors able to operate the mediation(More)
To realize the potential of the Internet as a source of valuable healthcare information, for the general public, patients or practitioners, it is imperative to establish a validation system based on standards of quality. The WRAPIN project (World-wide online Reliable Advice to Patients and Individuals) from the European Community has this ambitious goal.(More)
OBJECTIVES To model and implement web portals providing access to certified and high-quality information in the domain of health. MATERIAL AND METHODS The Unified Medical Language System (UMLS) knowledge sources of the U.S. National Library of Medicine and principles of implementation resulting from the previous ARIANE project are described. The XML(More)
OBJECTIVES To design and implement mediators dedicated to access various kinds of information sources in the framework of the project ARIANE. METHOD Mediators are dynamically built thanks to three components: pieces of knowledge issued from the UMLS knowledge sources and from a catalog of information sources, processes that translate a query into the(More)
Large information systems handle massive volume of data stored in heterogeneous sources. Each server has its own model of representation of concepts with regard to its aims. One of the main problems end-users encounter when accessing different servers is to match their own viewpoint on biomedical concepts with the various representations that are made in(More)
OBJECTIVES To model and implement a medical web portal providing access to well qualified and high-quality information. MATERIAL AND METHODS The Unified Medical Language System (UMLS) knowledge sources of the U.S. National Library of Medicine and an Information Sources Catalog (ISC) resulting from the ARIANE project are described. The XML technology that(More)
OBJECTIVES to define principles and methods that allow heterogeneous database in the health sector to be interoperable. MATERIAL AND METHOD to design a component-based middleware able to provide flexible and efficient means of communication between end-users and databases, and that exploits the standard nomenclatures of the health sector. RESULTS(More)
The development of health care and hospital information systems has to meet users needs as well as requirements such as the tracking of all care activities and the support of quality improvement. The use of process-oriented analysis is of-value to provide analysts with: (i) a systematic description of activities; (ii) the elicitation of the useful data to(More)
OBJECTIVES To design and implement a medical web portal providing access to well qualified and high-quality information in the framework of universities and hospitals. METHOD Based on the authors experience and the published literature, a model is proposed which describes the properties of documents in an object-oriented way. This model clearly separates(More)