Résumé:
—This paper discusses one of the most common level of
data exchange between the different port systems issues in order to
exploit the internal resources and the collective resources of all the
different systems. Our goal is to overcome any type of heterogeneity
conflict: semantic, technical and structural during the exchange of
information between each different heterogeneous system. In this
paper we propose a practical architecture to facilitate the exchange
and communication between all the different port systems without
modifying the local information systems. Our architecture is based on
three levels: 1) User level 2) Mediation level, 3) Source level. The
first level is dedicated to applications and users, the second includes
various tools to process queries and solve conflicts (technical,
structural, semantic) through mediators and ontologies. The third
level concerns local information systems and adapters that provide
unified interface information systems. The use of XACML format
will establish a secure data exchange and standardization of a good
decision for the access control of different types of documents
belonging to various port information systems
