The process splits into two distinct, interconnected pillars:

The proactive stage. It focuses on what will be produced, how much will be produced, when it will happen, and which resources are required.

This is the "control" phase. It involves monitoring the progress of work to see if it aligns with the original plan. If there are delays—due to machine breakdowns or material shortages—the control team steps in to troubleshoot and get things back on track. Why It Matters

Routing determines the path a product follows from raw material to finished good. It specifies:

A structured PPC approach involves several critical steps to ensure a smooth, efficient flow from raw materials to finished products: Predicting market needs.

A computer-based inventory management system designed to calculate the precise materials needed and when they must be ordered.

Ensuring machines, labor, and materials operate at peak efficiency with minimal idle time.

Whether you are designing a system using manual charts or implementing an enterprise-grade ERP system, the core principle remains identical: planning the work effectively, and then rigorously controlling the execution of that plan.

This stage sets the "When" by creating a timetable for every operation. It includes master schedules for high-level planning and daily schedules for shop floor tasks. Phase II: Production Control Ppc labs (pdf) - CliffsNotes

MRP explodes the BOM, nets against inventory, and generates planned order releases.

Production Planning and Control (PPC) is the "brain" of a manufacturing operation, coordinating the efficient transformation of raw materials into finished products by managing men, machines, and materials BS Publications Core Components A standard PPC system is divided into two primary phases: Production Planning:

Scheduling is the "when" of production. It establishes the timetable for production operations.

A of calculating a Master Production Schedule (MPS)

Regularly updating the status of work orders and comparing them to the schedule.