Differentiate between lean manufacturing and JIT (Just-in-Time) Manufacturing.
Lean Manufacturing takes its concept from JIT and thereby re-examines it from the customers view point. Lean manufacturing is based on the concept that anything that is produced must add value to the customer’s requirement. For instance when we are making stereo system for a luxury car, then we will think from the customer point of view like sound quality, durability, space occupancy, loud or medium sound, etc.
On the other hand Just-in-Time (JIT) is a methodology that has been designed to ensure that a product or part would arrive just in time to be used. JIT is a technique that saves the cost behind the unused inventory, and thereby eliminating the need of keeping piles of inventory.