Decision Support Systems
A DSS helps managers make decisions with data, models, and analytical tools.
Decision Making
Simon's model: Intelligence, Design, Choice, Implementation. Decisions: structured, semi-structured, unstructured.
DSS Components
Database, model base (statistical, optimisation, simulation), and user interface.
Types of DSS
Data-driven (OLAP, mining), model-driven (what-if), knowledge-driven (expert systems), group DSS.
Expert Systems
Knowledge base (IF-THEN rules), inference engine, explanation facility. Applications: diagnosis, planning.
Business Intelligence
BI tools: data warehouses, OLAP, dashboards, Tableau, Power BI. Transforms data into competitive advantage.
Summary
DSSs enhance decision-making through data, models, and intelligent systems.