Session4TypesofInformationSystemsandStrategic.ppt

Session 4: Types of Information Systems and Strategic Information Systems PART I Introduction to the Concept of Information Systems in Business Organization Level in Business Type of Information Systems in Business Type of Information Systems in Business TPS: Transaction Processing Systems MIS: Management Information Systems DSS: Decision Support Systems EIS/ESS: Executive Information (Support) Systems Transaction Processing Systems (TPS) 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 Transaction Processing Systems (TPS) Typical applications of TPS Management Information Systems (MIS) 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 How management information systems obtain their data from the organization’s TPS A Sample Report that Might be Produced by the MIS Decision-Support Systems (DSS) 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 Voyage-estimating decision-support system Executive Support Systems (ESS) 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 Model of a typical executive support system Interrelationships among systems Systems from a Functional Perspective Major Business Functions Sales and Marketing Systems