Abstract
Today’s economy is exhibiting a growing trend towards highly specialized solution providers cooperatively offering configurable products and services to their customers. In this context, knowledge based configurators which support the configuration of complex products and services, must be enhanced with capabilities of knowledge sharing and distributed configuration problem solving. In this paper we demonstrate how UML/OCL can be used as knowledge representation language supporting standardized knowledge interchange thus enabling cooperative problem solving by different configuration environments. We show the representation of configuration domain specific types of constraints in OCL and present an OCL based knowledge acquisition workbench which enables configuration knowledge base development, maintenance and interchange.