I did several projects before, we have a master schedule for the project to control the execution. The schedule is also the one we submitted to the client. So we only maintain one schedule.
Now, I 'm in a new company. here we have three schedules for each project. The first one is the internal control schedule which keep some time contengency against the contract, developed by the headquarer of the company. This control schedule only contains some major activities, it does not cover the entire scope of the contract, and is not logic driven.
The second one is the execution schedule developed by the project organization based on the control schedule.
The third one is the schedule submitted to the client,which do not have any time contengency.
So the project organization need to maitain three schedules, a lot of duplicate work.
Is this kind of schedule management common? any advise?