... work orders are developed to meet its requirement. Therefore forecast demand pushes the manufacturing of products through the generation of work orders. The MRP II system plans and schedules operations, compares manufacturing alternatives, updates data, allows operations to be monitored against plan and allows operating resources to be projected. 2. Context level diagram of MRP II system The dataflow diagram above is known as context diagram, which is model of the whole system, by one process. It shows all the external entities that interact with the system and the data flows between those external entities and the system. The context diagram above is a model of "MRP II system" This system interacts with five external entities: PRODUCTION department, FINANCE department, WAREHOUSE manager, MANAGEMENT, CUSTOMER, and SUPPLIER. In the diagram, the main data flows from PRODUCTION is 'production planning' data flows, for example, planning what to sell, what to produce, when to ...

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