Standard Article

Just-In-Time/Lean Production Systems

  1. W.C. Benton Jr

Published Online: 14 JAN 2011

DOI: 10.1002/9780470400531.eorms0441

Wiley Encyclopedia of Operations Research and Management Science

Wiley Encyclopedia of Operations Research and Management Science

How to Cite

Benton, W. 2011. Just-In-Time/Lean Production Systems. Wiley Encyclopedia of Operations Research and Management Science.

Author Information

  1. The Ohio State University, Department of Management Sciences, Fisher College of Business, Columbus, Ohio

Publication History

  1. Published Online: 14 JAN 2011


Just-In-Time (JIT) production systems have been successfully implemented in numerous companies throughout the world. JIT manufacturing is a philosophy based on eliminating waste, reducing manufacturing cost, and promoting total quality control. The primary objective of JIT is to produce the right quantity of product in the right place at the right time, while maintaining minimal work-in-process and minimal stock of completed work. In JIT production systems, little or no finished product is kept in stock. Rather than producing goods and supplying customers from stock, JIT production systems focus on producing exactly the amount required at exactly the time the customer requires the product.

JIT is also referred to as lean production. An organization driven by a JIT philosophy can improve profits and return on investment by reducing inventory levels, reducing variability, improving product quality, reducing production and delivery lead times, and reducing setup costs. With JIT (Lean) the entire manufacturing system, from purchasing to shop floor management, can be measured and controlled. Therefore, the JIT (Lean) system is a powerful management tool that could easily determine the success or failure of the manufacturing system.


  • just-in-time (JIT) manufacturing;
  • JIT;
  • lean production;
  • MPC;
  • shop floor control