[In Mr. Zachman's view] the architect's drawings [represent] a transcription of the owner's perceptual requirements. - John Zachman

There is a set of architectural representations produced over the process of building a complex engineering product representing the different perspectives of the different participants.

[Zachman reasons that] an analogous set of architectural representations is likely to be produced in building any complex product.

A significant observation regarding... architectural representations is that each is of a different nature than the others. They are not merely a set of representations, each of which is an increasing level of detail than the previous one. Level of detail is an independent variable, varying within each architectural representation.