The Toyota Product Development System is a Sociotechnical System (STS) which is divided into three main categories; people, process and tools&technology. Furthermore, these three categories consists of 13 principles. I’ve tried to summarize these three categories with the 13 principles of the Toyota Product Development System into one single picture.
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In order to have a better understanding of the total cycel time one also have to understand the concept of batching, and how it affects the total cycel time. Finding out your cycel time tend to seem easy:
Total Cycel Time = Number of things in Process / Average Completion Rate
The picture below tries to illustrate on how the delivery is affected by driving parallel projects (all-at-once) comparing to one at the time (focused). Also, it tried to illustrate what happens when the average completion rate increases and decreases.
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