Page 405 - Design for Six Sigma for Service (Six SIGMA Operational Methods)

Design and Improvement of Service Processes—Process Management 365

Staging Transportation Setup Inspection Staging

Casting Staging Machining Assembly
Time

Value-added time Non-value-added time

Figure 10.14 A Simplified Value Stream Map for a Production Process

We can see that this simple value stream map identified and quantified waste
in the process and provided clues for process improvement. Clearly, the
process can be improved if we can shorten the non-value-added time.

This kind of simple value stream mapping can also be used to analyze a
service process. Figure 10.15 shows a simplified value stream map for a

Start

Search Book value Wait in batch Add header
(2 min) (1 min) (2 min) (3 min)

Add items, Wait for Cross check Wait in folder
print quotes cross check (1 min) (60 min)
(6 min) (60 min)

End

Confirm Wait for PC
(3 min) (60 min)
Figure 10.15 A Simplified Value Stream Map for a Sale Order Process