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Decision Support Systems Option Topic #2 HSC IPT Topic Outline Characteristics Examples Organising in decision support Processing in decision support Analysing in decision support Other information processes Issues related to decision support Characteristics A decision support system is an information system designed to assist in decision making. The functions a DSS may perform include Handle large amounts of data from different sources. Provide report and presentation flexibility. Support drill-down analysis. Use advanced SW packages to perform complex operations. Support optimisation, satisficing and heuristic approaches. Perform ‘what-if’ simulation and goal seeking analysis. The functions a DSS may perform include – Handle large amounts of data from different sources. Provide report and presentation flexibility. Support drill-down analysis. Use advanced SW packages to perform complex operations. Support optimisation, satisficing and heuristic approaches. Perform ‘what-if’ simulation and goal seeking analysis. Decision making The 3 elements of decision making are - Intelligence Design Choice Types of problems - Structured Semi-structured Unstructured Examples Types of decision support systems – Spreadsheets Databases Expert systems Artificial neural networks Organising in decision support Steps in designing a spreadsheet solution – Analysis Design the solution Implement the solution Refinement and maintenance Processing in decision support Artificial intelligence (AI) Expert systems Expert system shells Automation of spreadsheets using macros Analysing in decision support Data warehousing Data marts Data mining Data matching Extracting data Other information processes Collecting, storing and retrieving data The role of the expert and the knowledge engineer in the creation of expert systems Use of intelligent systems to search data Issues related to decision support Reasons for using intelligent systems in decision support Responsibilities of those performing data mining Group decision support systems Responsibility References Chivers, B. et. Al. (2001). Information Processes & Technology – HSC Course. Australia: Jacaranda. Johnstone, G. et. Al. (2000). Information Processes & Technology – Excel HSC. Australia: Excel.
