” The dictionary agrees that the existence of knowledge is very difficult to monitor and reduce their presence to the detection of its subsequent effects. The knowledge is stored in the person (or other agents). This makes it almost impossible to observe. Some authors believe that “knowledge is the ability to solve a particular set of problems with a particular effect.” Knowledge is an integrated set of information, rules, interpretations and connections made within a context and an experience that has happened within an organization or a general or personal. Knowledge can only reside within a connoisseur, a particular individual internalizes it rationally or irrationally. As noted, there are many definitions of knowledge, from the classic and fundamental as a belief true and justified, more recent and pragmatic as a mixture of experience, values, information and know-how that serves as a framework for incorporating new experiences and information, and is useful for action features basic knowledge: knowledge is personal, that originates and resides in people treated him as a result of their experience (ie, their own ‘do’, whether physical or intellectual) and incorporate it into their existing staff to be “convinced” its meaning and implications, articulated as an organized whole that gives structure and meaning to its various “parts”; Its use, which can be repeated without the knowledge “consumed” like other physical assets, can “understand” the phenomena people’s perceptions (each a “their way” according precisely what knowledge means in a given time), and also “evaluate” in the sense of judging the goodness or desirability of the same for each one in each time, and guides the action of individuals, in the sense of what to do at every moment because this action is generally intended to improve outcomes for each individual, the perceived phenomena (even changing them if possible) .. Ali Partovi does not necessarily agree.