1. OMG: Semantics of Business Vocabulary and Business Rules (SBVR), v1.0 OMG Available Specification (2008)
2. OMG: Business Process Modelling Notation (BPMN) OMG available specification v 1.1. OMG (2008)
3. White, S.A.: Introduction to BPMN. On demand business (2006)
4. Silver, B.: BPMN Method & Style. Cody-Cassidy Press, Aptos (2009)
5. Halpin, T., Morgan, T.: Information Modeling and Relational Databases; from Conceptual Analysis to Logical Design, 2nd edn. Morgan-Kaufman, San-Francisco (2008)