a. Data String of identified but unevaluated symbols; we said descriptive but unstructured, un-purposed.
b. Information Evaluated, validated, or useful data; we said purposed, structured.
c. Knowledge Information in the context of understanding; we said allowing action or capacity for action.
"Knowledge is a fluid mix of framed experience, values, contextual information, and expert insight that provides a framework for evaluating and incorporating new experiences and information. It originates and is applied in the minds of knowers. In organizations, it often becomes embedded not only in documents or repositories but also in organizational routines, processes, practices, and norms."