Decision Support 1 Deepak Sharma Presented by- DEEPAK SHARMA
Decision Support Decision Making and Information Systems Types of decisions, examples TPS, MIS, DSS Executive Support Systems 2 Deepak Sharma Comparison of DSSs and MISs
Types of Decisions 3 Deepak Sharma
TPS – Transaction Processing Systems Basic business systems that serve the organization’s operational level Input: Transactions, events Processing : Sorting, listing, merging, updating Output: Detailed reports, lists, summaries Users: Operations personnel, supervisors TPS database 4 Deepak Sharma
MIS – Management Information Systems Serve management level; provide reports and access to company data Input: Summary transaction data, high-volume data, simple models Processing : Routine reports, simple models, low-level analysis Output: Summary and exception reports Users: Middle managers TPS database 5 Deepak Sharma
MIS – Management Information Systems 6 Deepak Sharma
DSS – Decision Support Systems Serve management level with data analysis for making decisions Input: Low-volume data or massive databases, analytic models, and data analysis tools Processing : Interactive, simulations, analysis Output: Special reports, decision analyses, responses to queries Users: Professionals, staff managers Other Data Other Data TPS database 7 Deepak Sharma
Overview of a Decision-Support System 8 Deepak Sharma Figure 12-3
DSS – Voyage Estimating System 9 Deepak Sharma
Selected DSS Applications 10 Deepak Sharma
Executive Support Systems Other Data Other Data Provide communications and computing environment that serves the organization’s strategic level Input: External and internal aggregate data Processing : Graphics, simulations, interactive Output: Projections, responses to queries Users: Senior Managers TPS database 11 Deepak Sharma
Executive Support Systems 12 Deepak Sharma
Putting Decision Support All Together The 4 Major Types of Information Systems 13 Deepak Sharma
Comparison of DSSs and MISs 14 Deepak Sharma
Summary Management Information Systems (MIS) - These systems access, organize, summarize, and displayed information for supporting routine decision making in the functional areas. Decision support system (DSS) - an organized collection of people, procedures, software, databases, and devices working to support managerial decision making Group decision support system (GDSS) - also called a computerized collaborative work system, consists of most of the elements in a DSS, plus software needed to provide effective support in group decision-making settings Executive support systems (ESSs) - specialized decision support systems designed to meet the needs of senior management 15 Deepak Sharma