We use quality tools in design to make sure a product or service meets customer needs before it is produced.
They help designers to:
-  Understand customer requirements.
-  Identify possible design problems early.
-  Compare different design ideas.
-  Find the root causes of weaknesses.
-  Reduce defects, risks, costs, and waste.
-  Test whether the design meets specifications.
-  Improve reliability, safety, and usability.
 
The design quality tools are:
 
1.Design Risk Analysis
2.Quality Function Deployment (QFD)
3.Design Failure Mode and Effects Analysis (DFMEA)
4.Design for Six Sigma (DFSS)
5.Design of Experiments (DOE)
6.Fault Tree Analysis (FTA)
7.Reliability analysis
8.Tolerance analysis
9.Design for asambly
10.Design for Afternarket
11. Design for Scrapping