Abstract
Recently, EVM has come to be used to integrate and manage the cost and the schedule in IT project. In software development process, it differs from construction and the hardware development, etc, defects in quality are found in the lower processes by test at the WBSs that had been recognized as completed in the upper processes, and that causes rework. In this paper, a modification of PV (Planned Value) that considers the quality (and rework as a result) is examined. The overview of a modification model and the future directions of the research are introduced.
