Thursday 19 July 2012

Complexity research from Nam Suh

Nam P. Suh gave "Complexity in Engineering" in the CIRP 2005 Annual, which seems to be an abstract of his book. The book cover is a nice picture of fractals. 

I enjoy the introduction part greatly as it has some interesting points and says a lot of things I want to say but cannot say that clear. There is no unified definition of complexity, because researchers just use this word to satisfy their 'immediate needs'. So he intended to create a fundamental and scientific approach to complexity.
There are two interesting points about which  I would like to read more literature. Firstly, he gave different goals of engineering, natural science and social science in dealing with complexity, and stated that the underlying principles of complexity are the same in different disciplines. Secondly, he classified complexity methods into two camps- the physical domain and the functional domain.

His complexity theory is based on his former work-axiomatic design (AD). He defined four types of complexity- real, imaginary, combinatorial and periodic- as shown in the figure I created below.

It has also been mentioned that the introduction of functional periodicity can reduce system complexity. But there is not much detail about this. I would like to read his book and learn more. 

Some questions to think about:
1. Is this method applicable to PD process instead of design?
2. How do we implement this in real life?

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