What is failure exactly? Failure and success are inextricably linked to expectations. You can only fail when you fall short of where you wanted to go. KM went through a buzz-word phase at the turn of the century and during that time expectations were sky high. So whenever one assesses failure, it is always important to ask if the expectations where realistic to begin with.
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http://www.knowledge-management-tools.net/failure.html#ixzz3Vs5yJYXs