What is waste? The Toyota Production
System (TPS) offers a definition.
There are seven kinds of waste:
- overproduction
- unnecessary transportation
- inventory
- motion
- defects
- over-processing
- waiting
In a software "manufacturing"
environment, overproduction and inventory could be in the form
of unnecessary features or unwanted features. Unnecessary
transportation could be inefficient task management. Another example could
be excessive communication such as reply-all email storms that occur when
a process is missing.
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