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From Wikipedia, the free encyclopedia

The information ladder is a diagram created by education professor Norman Longworth to describe the stages in human learning. According to the ladder, a learner moves through the following progression to construct 'wisdom' at the highest level from 'data' at the lowest level:


Whereas the first two steps can be scientifically exactly defined, the upper parts belong to the domain of psychology and philosophy.

The related model in information science is referred to as DIKW Hierarchy.


  • Longworth, Norman and Davies, W. Keith. Lifelong Learning. London: Kogan Page Ltd., 1996; p. 93., ISBN 0749419725


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