Abstract
Many works were interested in studying the ways of organizing Web services into communities which allowed the onset of a variety of definitions and models. The new paradigm, launched by the use of Web services communities models was adopted by users in various fields such as those related to marketing, commerce, health care, etc. However, the proposed conceptual models suffer from dispersed points of view that have to be unified in order to offer generic conceptual support for experts and clerical users. The purpose of this work is to propose a unified conceptual model able to unify different points of view through a generic UML description profile of Web services communities characteristics well adapted to new concepts imposed by the use of communities. Thanks to the proposed unified model, users will be able to build themselves their communities regardless the case of study involving Web services.