A thinking strategy to explain a process, framework, or phenomenon.
Model
The means for achieving an outcome, output, result, or project deliverable.
Method
A template, document, output, or project deliverable.
Artifact
Invented by Bruce Tuckman, it deals with the four stages of team development.
Tuckman Ladder
A situational leadership model and a great example of a the “thinking strategy to explain a framework,” portion of a model definition.
OSCAR model