In integrated manufacturing information systems, the operations file (shop status, routings, and completions) can be updated by several subsystems. Which source(s) typically post updates to the operations file?

Introduction / Context:
The operations file tracks the execution state of manufacturing and logistics activities, such as work order progress, routing steps, and shipment confirmations. Multiple enterprise subsystems feed this file to keep plans aligned with reality and to support accurate reporting across the plant and warehouse.

Given Data / Assumptions:

• Material Requirements Planning (MRP) issues and adjusts planned and released orders.
• Production control records completions, scrap, and rework.
• Shipping confirms quantities and dates as goods leave the facility.

Concept / Approach:

Because the operations file reflects both plan (from MRP) and execution (from production and shipping), each subsystem legitimately updates it. MRP feeds planned releases and reschedules, production control posts shop-floor completions and move tickets, and shipping posts shipment confirmations, which close or decrement open orders and trigger downstream billing and inventory movements.

Step-by-Step Solution:

Verification / Alternative check:

Standard ERP modules (MRP/Production/Shipping) integrate via shared transaction tables, confirming multi-source updates to operational records.

Why Other Options Are Wrong:

Picking a single source ignores end-to-end synchronization requirements in manufacturing and logistics.

None of the above: Contradicts mainstream ERP design.

Common Pitfalls:

Allowing uncontrolled direct edits; updates should flow via transactions to preserve audit trails and data integrity.

Final Answer:

All of the above