Abstract
As a part of reform in the Japanese government procurement procedure, implementation of the EVM (Earned Value Management), one of the project management methods, has been discussed. The EVM is mentioned in various articles including the "Journal of Society of Project Management" (Society of Project Management, March 2002) and "Enterprise Architecture" (Council of IT Associate, December 2003). In NTT DATA, we have studied application and effectiveness of the EVM since 2002. In order to maintain project management properly with the EVM, we need to have a very accurate project plan. However, we have experienced huge difference between plans and results due to the addition of safety margins in baseline plans at our early stage of implementation of the EVM. In response to this, we have introduced the critical-chain method to the EVM to make baseline plans without safety margins. In this paper, we explain our implementation of the critical-chain method in the EVM and study its effectiveness.
