Data are a set or sets of discrete objective facts about an event or a process, and have little use by themselves unless converted into information.?>

Information is data endowed with relevance and purpose.

Knowledge represents a state or potential for action and decision in a person, organization or a group.

Wisdom is the ability to make correct judgments on the basis of previous knowledge, experience and insight.

Explicit knowledge can be articulated in formal language and transmitted among individuals.

Tacit knowledge is personal knowledge embedded in individual experience and involving such intangible factors as personal belief, perspective, and values.