1. CMMI: Guidelines for Process Integration and Product Improvement;Chrissis,2006
2. ISO/IEC TR 15504-1:2004 Information Technology – Software Process Assessment – Part 1: Concepts and Introductory Guide, International Organization for Standardization and the International Electrotechnical Commission, 2004.
3. The Capability Maturity Model: Guidelines for Improving the Software Process;Paulk,1995
4. J. Gremba and C. Myers, The IDEAL (SM) Model: A Practical Guide for Improvement, Bridge, Software Engineering Institute, No. 3, 1997.
5. A. Trendowicz, T. Punter, Quality modelling for software product lines, in: QA-OOSE’03 Workshop, 2003.