A model is a representation of reality. . . . . . . . see Management Models; Pro's & Con's

While they seeks to encompass all the essential elements of a particular domain, they nevertheless simplify and generalise.  As such, they can exclude specific consideration of a particular issue and cannot contain all the detailed elements required for a particular analysis.  Accordingly, they should be used to help stimulate broader thinking when analysing a problem.

I have referenced the existing models which are found within this website (to avoid duplication), and added others.  If I have missed some 'blinders', let me know. (references to follow)