Decision Support Systems
Three Main Areas in Which DSS Data Differ from Operational Data
- Time span
- Operational data represent current (atomic) transactions.
- DSS data tend to cover a longer time frame.
- Granularity
- Operational data represent specific transactions that occur at a given time.
- DSS data must be presented at different levels of aggregation.
- Dimensionality
- Operational data focuses on representing atomic transactions.
- DSS data can be analyzed from multiple dimensions.