I'm looking for feedback of pros and cons for creating a separte project plan that the users log time to, then weekly the PM updates and completes the detailed plan. The general plan will have tasks such as Design and all activites within design will be posted here. It will be up to the PM to complete and add the actual hours in the detail plan. Saving Changes...
Well..the disadvantages of having such a seperate plan would be too much time required by the PM in updating the Detailed Plan at the end of the week, specicically if the PM is also involved in other activities on the project such as customer dealing and business process verification.
The plus point here can be that any tasks that were missed out in the Detailed Plan (were not planned earlier), can be identified and planned during the status review. However the planned effort for each new task would also be required in order to find out the Effort Estimation Accuracy for the project, which is again an added effort.