Form, Fit, and Function

The three things which, when thoroughly revealed, completely describe a part ¹.

Note that things like manufacturing processes might not be included in this usage unless they are intrinsic to the End User‘s ability (or willingness) to rely on one or more of these three concepts².

See also, form, fit, and function.

Footnotes

1. Which may, or may not, be complex or hierarchical.[↩]
2. In which case, such processes will typically be called for on the identifying drawings (and considered to be part of the form)[↩]