Critical Chain Project Management Based on PERT/CPM

Network Scheduling Technology is one of the most important parts of Project Management(PM).Based on the analysis of PERT/CPM,the Theory of Constraint(TOC) is introduced and a completely-new explanation to three-point estimation is given,which overcomes the shortage of traditional three-point estimation in PERT.In this new explanation,the application of TOC in PM is intituled Critical Chain Project Management(CCPM),which emphasizes controlling Critical Chain in the execution of project.Further about how to control the Critical Chain,a new method based on three-point estimation will be drawn,and by an example,we will prove that this method is equal to or more effective than PERT/CPM.