Before revision: After ECR is approved by Engineering Department then an ECO is made for making the change; Change Notice at Chemical (Helms, 2002); Action Request (AR) at ABB Robotics AB (Kajko-Mattson, 1999); Request For Change (RFC) by Rajlich (1999); RFC is also a common term in ITIL (Keller, 2005) and PRINCE2 (Onna Koning, 2003); Change Request (CR) is, among others, used by Lam (1998), Mäkäräinen (2000), Dennis, et al.
After revision: After ECR is approved by Engineering Department then an ECO is made for making the change; Change Notice at Chemical (Helms, 2002); Action Request (AR) at ABB Robotics AB (Kajko-Mattson, 1999); Change Request (CR) is, among others, used by Lam (1998), Mäkäräinen (2000), Dennis, et al.