Abstract
Quantitative project management is one of the most effective methods to achieve the business goal. It brings us an objective perception of facts, an early appreciation of problems, and a proper decision how to correct the project. It enables us to succeed our projects. The process performance baselines are the backbone of the quantitative project management. However, the imprecise baselines can invalidate its effectiveness and can cause the incorrect decision. Meanwhile, the way how to calculate the baselines requires some simplicity so that any project member can handle it on their project. In this paper, we will verify the effectiveness of our approximate PERT method which our company adopted for the improvement of the accuracy and simplicity of the calculation of the process performance baselines.