type of manual, manufacturer's name and number for
the equipment, related manuals, level of training needed,
other background
General description
define, give overall picture, provide visual aid
Detailed description
each part needed by operator is described in a logical
sequence; details should include location, shape, method
of operation, and purpose
Theory of operation
the "why it works" section: a technical or scientific explanation
Operation
step-by-step commands in sequential order; should include
warnings and some brief explanations of results of actions
and reasons for doing them (the purpose of each step should
be clear to reader before instructions for doing it are given)