What must production activity control ensure when planning the flow of work?

Production activity control plays a critical role in managing the flow of work within a manufacturing environment. When planning this flow, it is essential to ensure that the necessary materials and tooling are available. This is crucial because without the right materials and tools, production cannot proceed smoothly, leading to delays, inefficiencies, and potentially increased costs.

Having the necessary resources on hand allows for streamlined operations, ensuring that production schedules can be met as planned. This proactive approach helps to avoid bottlenecks and interruptions in the workflow, enabling the facility to maintain productivity and fulfill orders in a timely manner. When production activity control effectively manages these materials and tooling requirements, it reinforces overall production efficiency and effectiveness.

The other options, while relevant to different aspects of production planning, do not directly address the immediate need for material and tooling availability, which is fundamental for the smooth execution of production activities.