1. Ahern D, Clouse A, Turner R (2004) CMMI distilled: a practical introduction to integrated process improvement. Addison-Wesley, Boston
2. Becker J, Delfmann P (eds) (2007) Reference modeling—efficient information systems design through reuse of information models, Springer, Berlin
3. Becker J, Kugeler M, Rosemann M (eds) (2003) Process management: a guide for the design of business processes. Springer, Berlin
4. Business Process Management Maturity Model (BPMM) of OMG, see http://www.omg.org/docs/formal/08-06-01.pdf (called 2009-10-31)
5. Capability Maturity Model Integration (CMMI) of CarnegieMellonUniversity, see http://www.sei.cmu.edu/cmmi/ (called 2009-10-31)