Spiral Model for Knowledge Acquisition. “Spiral” metaphor contrasted with “Waterfall” metaphor. Iterative vs Sequential. Right first time is wrong (sets wrong expectation), lots of parallel working and recycle is better. (IBM “Rational” approach for managing S/W development uses this concept if not the same metaphor.) No brainer, common sense. [Here in a psychology context too.] [In knowledge context it comes from Nonaka and Takeuchi 1995]
[Interesting search hit on my blog.]
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What, Why & How do we Know ?