segunda-feira, 8 de outubro de 2007

Kaizen


Kaizen (改善, Japanese for "change for the better" or "improvement"; the English translation is "continuous improvement" or "continual improvement").

Kaizen aims to eliminate waste (defined as "activities that add cost but do not add value"). It is often the case that this means "to take it apart and put back together in a better way." This is then followed by standardization of this 'better way' with others, through standardized work.

Introduction
Kaizen is a daily activity whose purpose goes beyond improvement. It is also a process that, when done correctly, humanizes the workplace, eliminates overly hard work (both mental and physical), and teaches people how to perform experiments using the scientific method and how to learn to spot and eliminate waste in business processes.

Kaizen must operate with three principles in place: process and results (not results-only); systemic thinking (i.e. big picture, not solely the narrow view); and non-judgmental, non-blaming (because blaming is wasteful).

People at all levels of an organization participate in kaizen, from the CEO down, as well as external stakeholders when applicable. The format for kaizen can be individual, suggestion system, small group, or large group. In Toyota it is usually a local improvement within a workstation or local area and involves a small group in improving their own work environment and productivity.

The "zen" in Kaizen emphasizes the learn-by-doing aspect of improving production. This philosophy differs from the "command-and-control" improvement programs of the mid-twentieth century. Kaizen methodology includes making changes and monitoring results, then adjusting. Large-scale pre-planning and extensive project scheduling are replaced by smaller experiments, which can be rapidly adapted as new improvements are suggested.

Kaizen: Meaning and Translation:
The original kanji characters for this word are: In Japanese this is pronounced 'kaizen'.

  • 改 ('kai') means 'change' or 'the action to correct'

  • 善 ('zen') means 'good'.

Implementation
The cycle of kaizen activity can be defined as: standardize an operation -> measure the standardized operation (find cycle time and amount of in-process inventory) -> gauge measurements against requirements -> innovate to meet requirements and increase productivity -> standardize the new, improved operations -> continue cycle ad infinitum.

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