Routing is essential in the following type of industry:

Explanation:

• Routing determines what work is to be done and where and how it will be done. Taking from raw material to the finished product, routing decides the path and sequence of operations to be performed on the job from one machine to another.
• Routing is essential in the Assembly industry

A production planning and control system has many functions to perform, some before the arrival of raw materials and tools, and others while the raw material undergoes processing.

There are four steps in the process of production planning and control:

Routing: Routing can be defined as the process of deciding the path (route) of work and the sequence of operations.

Scheduling: Scheduling function determines when an operation is to be performed, or when work is to be completed.

Dispatching: It is the action, doing or implementation stage. It comes after routing and scheduling. Dispatching means starting the process of production. It provides the necessary authority to start the work.

Expedition or follow-up: It is designed to keep track of the work effort. The aim is to ensure that what is intended and planned is being implemented. It maintains proper records of work, delays, and bottleneck. Such records can be used in the future to control production.