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Practical advices by Karl Wiegers

I am reading the beautiful book "More About Software Requirements: Thorny Issues and Practical Advice" by Karl E. Wiegers.

 I'd like to share with you two of the most important points of his "10 cosmic truth", 
that to me are #6 and #9.


 #6 The requirements might be vague, but the product will be specific.


 I would say this is the usual point of "Natura abhorret a vacuo", that is here... each gap n requirements will be filled by some bad feature.


 #9 The customer is not always right, but the customer always has a point.

 Never underrate your key users
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