At the start of a project, the project team will have some performance objectives for product performance and process performance. The objective of this process is to quantitatively manage the process to achieve product/process performance objectives. The Project Manager should be able to predict that the project will meet the performance objectives using statistical techniques -- i.e., the project should be statistically managed. For example, the project manager should be able to predict the percentage of time required design, coding and testing for the project. This again can be done if
models are developed based on the data of the earlier projects.

The project manger has to set perfomance objective, use the statistical models to predict the performance for the present project and check whether these predictions are correct or not by acctually measuring the performance. Since it may not be be possible to quantitatively manage all the processes, only some processes are selected for this activity.

Quantative Project Management