Information Systems

Information Systems

MIS DSS EIS

Management Information System Decision Support Systems Executive Information Systems

MIS
Management Information System
• Data + Organization • Set of formal business systems designed to provide information for an organization • Computers are typical components

DSS Decision Support Systems
• • • • • Supplements an MIS Pulls information from variety of databases Interactive Nonroutine decision-making Model – mathematical representation of real-life system • Simulation – using a computer model to reach a decision about a real-life situation

MIS vs. DSS
• MIS
– Planned reporting – Standard, scheduled, structured, and routine – Constrained by the organizational system

• DSS
– Decision making – Unstructured and by request – Immediate and friendly

EIS Executive Information Systems
• DSS for top-level managers • How decisions effect entire organization
– – – – – – Overall vision; company goals Long-term objectives Organizational structure Staffing and labor relations Crisis management Control of overall operations

• Access to information from external sources