Define and explain what PAC is. Solution PAC= Production activity control We can define PAC as the process that coordinates the manufacturing resoures, schedule and controlls them PAC involves many plans associated with the action, reporting the results achieved and reviving the plans etc. PAC converts what we have planed into actions by providing all the information and guide that we might need. According to McMahon, a simple Production Activity Control architecture consists of the following five building blocks : 1. Scheduler 2. Dispatcher 3. Monitor 4. Mover 5. Producer Source: KJ Singh , MBA.