A Journal of University-Industry-Government Innovation and Entrepreneurship
Table 2 Icons used for representing model relationships, ref. (Saeed 2008 )
Process | Icon | Explanation |
|---|---|---|
Stock |
| Accumulation or integration of flows linked to the icon |
Flow |
| A rate of change or a derivative of a stock. Empty arrowhead indicates normal direction of flow. Normally connected to a stock. Cloud at one end represents unlimited source or sink |
Converter |
| Algebraic function of stocks, other converters, and constants |
Graphical function |
| Graphically represented function of another variable in the system |
Causal link |
| Information relationship between two variables |
