Methodology

Acceptance Criteria

A pattern SHOULD be used and something you can observe.
A pattern SHOULD be repeated and over enough time to inform one's experience.
A pattern MUST feel good when used.
In some cases a pattern MAY be based on abstract thought without experience.

Defining a Pattern

Each pattern MUST define the following:

Name
Scope (see below)
One line summary of the pattern
Detailed description of the pattern including why the pattern is good and where it should be used

A pattern MAY additionally define:

Illustrations to clarify the pattern
Sample source code
References to supporting matterial