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Group Design Project

Concepts of quality



The concept of design fidelity summarize the critical attributes of a product design.






Design is measured according to its fitness for purpose.


Image copyright Segway Inc.









Conflict about purpose is often the primary cause of failed products.





Design is measured according to its fitness for standards.


Image copyright Princeton Digital Corp.







Measurement of quality is dependent on the purpose.


Image copyright Acer Inc.





Design is measured according to its fitness for market.


Image copyright Sony Corp.









Machines and processes may collect quality indicators or implement quality procedures, but people define and evaluate quality.





How do people identify quality?




Quality is affected by a number of varying factors.


Tablet PCDigital notepadOQO handheld PCPaper notepad
Images copyright (left to right) Lenovo Group, Unimatic Engineers Ltd and OQO Inc.




Design is the source of quality.



Image copyright Dalsa Corp.




Product design must factor an increasing number of requirements (concurrent engineering).





Cost is a key factor in product design.

Cost of quality
Source: Gallien, J. (2002). Lecture for 15.760B course. MIT.