Value Stream Mapping

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Value Stream Time Map

Time maps show work that adds value in the eyes of the customer (value added work), where time is wasted due to delays, work in progress etc. (non value added work) and work that the customer does not necessarily pay for, but it is required for accounting / legal purposes (required waste). From this data we can calculate the process efficiency cycle.

Value Stream Process Mapping

Value stream maps take this principal a stage further and also look at other types of waste such as:

• The transportation of data/documents between people / departments / systems.
• The duplication of data entry across different documents/systems.
• The amount of work in progress at any step of the process.
• Rework as a result of the process not being right first time.
• Checking and validation routines. 

This exercise is often displayed visually using a Value stream map, which can highlight areas for potential improvement. 

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