1. Technical Description
A product
.A mechanism
.A process
.A site
.An object
.An idea/concept

2. Technical Descriptions
A product description from a manufacturer
.A specs from an engineer on a new product
.A field note from a scientist/marketing analyst
.An observation of a class by a teacher

3. Technical Descriptions
Description of entire concept, mechanism
.over view
.shape, dimension, material, function, relationship
.Description of individual components
.detail
.One complete operating cycle
.Logical organization (spatial, chronological, functional)
.Visual aids

4. Principles Governing TD
Accuracy
.Preciseness
.Objectivity
.Clarity

5. Process
Natural process
.Artificial process

6. Specification Specify, don’t explain .Make the spec. verifiable
.Distinguish between performance and design specs.
.Be complete, precise, concise