The tools of decision support include a variety of software supporting database query, modelling, data analysis, and display. A comprehensive tool kit for DSS would include software supporting these application areas. Examples of software tools falling into these four categories are given in
Table 1.
| Data Based Software | Model Based Software | Statistical Software |
Display Based Software |
| Dbase IV | Foresight | SAS | ChartMaster |
| FOCUS | IFPS | SPSS | SASGRAPH |
| NOMAD II | Lotus 1-2-3 | TSAM | TELLAGRAF |
| RAMIS | Model | ||
| R: base 5000 | Multiplan | ||
| SQL | Omnicalc |