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The term Lean derives from the improvement methodologies developed, refined and applied to the specific business needs of Toyota. These methodologies are commonly referred to as the Toyota Production System (TPS) or the Toyota Business System. In its entirety, TPS has many techniques of implementation, methodologies for deployment and tools for tactical analysis. To be successful, all of the above must be supported by a management philosophy that creates a culture of continuous improvement. This combination of understanding, maturity and tactical skill, when developed and deployed properly, enables performance improvements through the identification and elimination of “waste”.

Simply Lean Management:

To improve your understanding of Lean terminology, this LPM Academy glossary serves.

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J

J.I.T. Accounting

An accounting system that seeks to reduce accounting transactions while at the same time improving the accuracy of product costs and manufacturing performance. JIT Accounting relies on continuous improvement trends to established goals rather than traditional variance analysis. (also known as Lean Accounting).

Jidoka

Japanese for the transfer of human intelligence to a machine.(Source: TBM Consulting Group http://www.tbmcg.com/de/about/ terminology.php)

Jidoka

Automation with a human touch or transferring human intelligence to a machine. This allows the machine to detect abnormalities or defects and stop the process when they are detected. Defects are therefore prevented from passing through the line, and makes it possible to build in quality into the production process. Since defects are prevented automatically, inspectors become unnecessary, which in turn results in significant labor savings. (See also Autonomation).

Jishuken

Management driven Kaizen activity where management members identify areas in need of continuous improvement and spread information through the organization to stimulate Kaizen activity.

JIT

Production according to demand: only what is needed is produced, at the right time and in the desired quantity.(Source: TBM Consulting Group http://www.tbmcg.com/de/about/ terminology.php)

Jour fix

The jour fix is a regularly held, relaxed round of talks for which the project manager arranges a fixed place and date. Usually, there is no formal agenda at this meeting, so that the employees can exchange their experiences with the joint project among themselves in an informal manner. The project manager is thereby informed about the actual problems and the communication between the participants is improved. (Source: GPM)

Jump sequence

If the end of an activity is connected to the beginning of its predecessor, then in the network technique this is called the jump sequence relationship. (Source: GPM)

Just in Time (J.I.T.)

A strategy that concentrates on making quality products, in the quantity needed, when it is needed. This strategy exposes waste and makes continuous improvement possible.

Just-in-Time

Production according to demand: only what is needed is produced, at the right time and in the desired quantity.(Source: TBM Consulting Group http://www.tbmcg.com/de/about/ terminology.php)

Just-in-time production

Just-in-time production, or JIT for short, is a form of production management. In this form, parts for the production process are not stored temporarily, as is usually the case, but are provided directly in the required quantity to the intended production location at the right time. The advantage is the great flexibility with regard to customer requirements and the high readiness for delivery with short delivery times, as well as the production of customized end products without high inventory costs and risks.