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The Daily Insight

Is lean manufacturing same as JIT?

Author

Henry Morales

Published Feb 15, 2026

The terms lean manufacturing and “just in time,” or JIT, are often used as if they’re the same thing, but they aren’t identical concepts. Just-in-time manufacturing is focused on efficiency, while lean manufacturing is focused on using efficiency to add value for your customer.

What are the five 5 principles of JIT manufacturing?

These are the 5 main principles of Jit Management: Total Quality Management, Production Management, Supplier Management, Inventory Management , and Human Resource Management. The first principle that we will focus on today is Total Quality Management. JIT will not survive if there is not a strong emphasis on TQM.

What is JIT production management?

The Just-In-Time (JIT) concept is a manufacturing workflow methodology aimed at reducing flow times and costs within production systems and the distribution of materials. The prime goal of JIT is for zero inventories across the organization and its supply chain.

Why is JIT an example of lean production?

Thompson writes, “Just-in-time manufacturing is focused on efficiency, while lean manufacturing is focused on using efficiency to add value for the customer. You can use Lean to create a JIT process but JIT is the piece of the Lean method that eliminates the waste of excessive inventory.

Is JIT lean or Agile?

5 Lean Manufacturing Principles JIT manufacturing helps organizations control variability in their processes, allowing them to increase productivity while lowering costs. JIT manufacturing is very similar to Lean manufacturing, and the terms are often used synonymously.

How is JIT related to TQM?

Overall, JIT is a pull system that focuses on producing what is necessary when it is necessary and in necessary amounts allowing the pursue of quality, cost minimization, delivery time and waste reduction, while TQM aims to improve quality by continuous improvements of operations to guarantee free defects products.

Why does Toyota use JIT?

Use of JIT within the Toyota Production System means that individual cars can be built to order and that every component has to fit perfectly first time because there are no alternatives available. It is therefore impossible to hide pre-existing manufacturing issues; they have to be addressed immediately.

What are the 5 principles of lean manufacturing?

Lean manufacturing has enabled businesses to increase production, reduce costs, improve quality, and increase profits by following five key principles: identify value, map the value stream, create flow, establish pull and seek perfection.

What is a good example of lean thinking?

Examples of added value for manufacturers include extra product features deemed valuable by customers, shorter lead times, and more convenient deliveries in smaller batches.

How JIT is related to quality?

Just-In-Time (JIT) is related to quality in three ways: JIT cuts the cost of quality. JIT improves quality. Better quality means less inventory and better, easier-to-employ JIT system.

Is Toyota still using JIT?

Using JIT, Toyota produces its vehicles based on the orders it receives through its dealers. In this production process, the company uses its supply chain in such a manner that only the parts that are needed to manufacture vehicles are received on time. This allows Toyota to minimize its inventory of vehicle parts.