Abstract. In this paper, a model is presented which allows the composition of web services by means of a special web service, named WSInterConnect. Such a service might be used in a portal environment to allow interactive services lookup and creation of permanent composed services in the design stage, and for efficiently resolving missing parameters during the runtime of a process. The portal integration relies on augmented service description files based on WSGUI concepts [1], and provides a usable infrastructure for BPEL4People [4] concepts.