Page 105 - Six Sigma Advanced Tools for Black Belts and Master Black Belts
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90 August 31, 2006 2:56 Fishbone Diagrams vs. Mind Maps
People to talk to Give Writers
Industry stats
Experts to quote what they need
Graphics
Photos of key players Pit
Buzzkiller.net
Company name
? In Headline Watch your language
Typos
Figure 7.8 Direction of branches for mind mapping.
importance. This is understandable as the primary function of the tool is just to trace
the cause-and-effect relationship and present it in diagram form. Symbols (C, N, and
X) to indicate whether a key process input variable is a ‘controllable’, ‘noise’or design
factor may added to indicate the nature of the input variables. For the mind map,
the use of colors, line thickness and images is almost mandatory. The reason is that
the use of all these will stimulate the senses to improve the efficiency of the brain in
memorizing them and trigger the creative process.
7.3.2.3 Guidelines for the main branches
The established guidelines for the fishbone diagram -- man, machine, method, mea-
5
surement, material and environment (M E) for operational scenarios, and policy,
4
people procedure, place, measurement and environment (P ME) for transactional
scenarios -- have been proven to be good guidelines that trigger the team to start
thinking in a certain direction. As for the mind map, no such guideline exists, as,
firstly, creativity is one of the key objectives of the tool. A guideline like this may stifle
creativity as human beings generally like to take the easy way out and just limit their
thinking to a small number of few categories. Secondly, the intended application of
the mind map is too wide to give a sensible, general guideline for the main branches.
7.3.3 Other practical considerations
7.3.3.1 Ease of use and software support
Ease of use and software support are a key concern when a new tool is being intro-
duced. For example, we could not implement Six Sigma fully if there were no statistical
software and computer power available in the market.
