In a typical manufacturing environment, most planned orders are created automatically by MRP (which the text refers to as "materials planning"), and then one or more persons will convert planned orders to production orders. MRP never creates production orders. We can think of planned orders as "requests" or "suggestions" as to what should be manufactured, and production orders as "authorizations" or "commitments" as to what will be manufactured.

Suggest why human authorization is required to create a production order, instead of allowing MRP to create a production order directly.

Make sure your answer is at least 75 words, in clear, well-written English.