1. ISO/IEC (1991a) Proposal for a Study Period on Process Management, JTC1/SC7 N872, 14 June.
2. ISO/IEC (1991b) ImproveIT, Issue 1.0a, JTC1/SC7 N865, June.
3. ISO/IEC (1992) The Need and Requirements for a Software Process Assessment Standard, Study Report, Issue 2.0, JTC1/SC7 N944R, 11 June.
4. Technical Report CMU/SEI-93-TR-24;M.C. Paulk,1993
5. Bell Canada (1992) TRILLIUM ? Telecom Software Product Development Capability Assessment Model, Draft 2.1, July.