Well defined business processes are a crucial success factor for deploying SOA/SOKU architectures. In this paper, the declarative business process description language -ROsWeL -which supports applications compatible with ROA, is discussed. ROsWeL provides a declarative, reliable and semi-automatic composition of RESTful web services, enriched by the knowledge representation. The paper discusses benefits of ROsWeL, and presents an example of a simple workflow that captures essential ROsWeL features.