Abstract
Service-Oriented Architectures (SOA) are broadly used by companies to gain in flexibility. Web service is the fitted technical solution used to support SOA by providing interoperability and loose coupling. First research works allowed us developing genuine middleware based on a new paradigm called aspect based services to dynamically adapt services orchestration. This approach can also be used for SPARQL (Protocol and RDF Query Language) requests to dynamically access Web services ontologies. According to these pre requisites, this paper presents our approach, current and future research works.