Engineering Change Proposal (ECP) (glossary)
An engineering change proposal (ECP) is the management tool used to propose a configuration change to a configuration item (CI) and the system's baselined performance requirements and configuration documentation established during design and development of the system (DoD 2001)
DoD. 2001. MIL-HDBK-61A(SE) Configuration Management Handbook, 7 February 2001. Accessed on 11 September 2012. Available at https://acc.dau.mil/CommunityBrowser.aspx?id=142238.