ABSTRACT
Design for six sigma (DFSS) is really a breakthrough strategy to improvement, as well as customer satisfaction. In the new millennium, it is the most advantageous way as well as an economical way to plan. Fundamentally, the process of DFSS is really a four-step approach. It recognizes the customer and progressively builds on the system concept for robustness in product or service development and finally testing as well as verifying the results against the design. Some of the essential tools used in DFSS are:
Define • Customer understanding • Market research • Kano model • Organizational knowledge • Target setting
Characterize • Concept selection
• Pugh selection • Value analysis
• System diagram • Structure matrix • Functional flow • Interface
• QFD • TRIZ • Conjoint analysis • Robustness • Reliability checklist • Signal process flow diagrams • Axiomatic designs • P-diagram • Validation • Verification • Specifications
Optimize • Parameter and tolerance design • Simulation
• Taguchi • Statistical tolerancing • QLF • Design and process failure mode and effects analysis (FMEA) • Robustness • Reliability checklist • Process capability • Gauge R & R • Control plan
Verify • Assessment (validation and verification score cards) • Design verification plan and report • Robustness reliability • Process capability • Gauge R & R • Control plan
The concept of DFSS may be translated into a model shown in Figure 16.1. This model not only identifies the components DCOV (define, characterize, optimize, verify), but it also identifies the key characteristics of each one of the stages.
