Page 399 - Design for Six Sigma a Roadmap for Product Development

368 Chapter Ten

■ Reducing cost using modularity and standard components
■ Decreasing storage space
The “discard” procedure should consider

■ Manufacturing cost
■ Simplifying maintenance tasks (e.g., minimum skills, minimum
tools, and standard attachment methods)
■ Work site reliability: training technicians to avoid damaging the
repair equipment
■ Repair change adjustment to enable plug-in of new parts rather
than field rework

10.5 Design for Serviceability
After the DFSS team finish DFR and DFMA exercises, the next step is
to embark on Design for Serviceability, another member of the DFX
family. Design for Serviceability (DFS) is the ability to diagnose,
remove, replace, replenish, or repair any DP (component or subassem-
bly) to original specifications with relative ease. Poor serviceability
produces warranty costs, customer dissatisfaction, and lost sales and
market share due to loss of loyalty. The DFSS team may check their
VOC (voice-of-the-customer) studies such as QFD for any voiced ser-
viceability attributes. Ease of serviceability is a performance quality in
the Kano analysis. The DFSS algorithm strives to have serviceability
personnel involved in the early stages, as they are considered a cus-
tomer segment. Many customers will benefit from DFS as applied in
the DFSS algorithm, both internally and externally. For example,
Fig. 10.6 depicts the automotive DFS customer segments. More cus-
tomers indicate more benefit that can be gained that is usually more
than the DFSS team realize initially.
The following consideration of DFS should be visited by the DFSS
team:

1. Customer service attributes
2. Labor time
3. Parts cost
4. Safety
5. Diagnosis
6. Service simplification
7. Repair frequency and occurrence