Figure 2.

Tuneable resolution approach. Top: An initial model (shown as 3 puzzle pieces) functions within an environment (A1). Fine-graining a portion of the initial model to generate A2a, and subsequently a portion of that latter model to generate A3, adds additional scales of relevance. Progression from A3 to A2b demonstrates re-engineering of the previous scale model (A2a) to reflect knowledge gained at A3. Bottom: An initial model is refined to include additional scales of interest in the environment as model development progresses from B1 through B3. Depending on the question or aspect, the user choses the appropriate level of resolution.