Executing a project according to its plan does not guarantee a successful completion of the project, since if it follows a faulty plan is bound to fail. Many studies proved that faulty plans are a major cause for project failures. Much has been written about management control mechanisms that compare execution to plan and initiate correction actions to close undesired gap. However, very little has been written about methodologies to be used for verifying that the plan is right, and with a good fit to the original intention. It is more important, as it is obvious that to execute a poor plan, is a waste. The purpose of this seminar is to present an approach which may be used to evaluate the quality of the project planning. It can be further used for improving the probability that planning of future projects, will be improved. The approach is based on identifying the major planning processes used for planning. Field study demonstrates the use of the approach.