The idea of more flexible, modular system structures thanks to web service interfaces feed expectations towards a novel degree of business agility. However, the challenge of the information system community consists in developing methods and techniques to vest service-orientation with business concepts that deploy a SOA according to organizational requirements. This paper tackles this challenge by introducing Business Service Management as an interdisciplinary discipline for business-driven deployment of SOA. It approaches this ambitious objective by utilizing business processes as semiformalized representations of an enterprise's characteristics and requirements towards IT.