special topic. tps pcs ecs dss mis eis
TRANSCRIPT
Decision Support Systems vs. Management
Information SystemsSpecial Topic
TPS PCS ECS
DSS MIS EIS
Review: Types of Information Systems
What type of IS is WebEX?
◦Blackboard?
◦iTunes?
◦Web for Students
◦MapInfo
◦Excel
Examples
Help Transform ◦ Data Information
Manages the Information Provides Reports
Reports:◦ Graphs & Charts- easy to understand◦ Averages & Summaries
more simple more relevant
MIS
Unique Components1. Knowledge-base2. Modeling Scenario modeling Decision modeling Mathematical modeling Simulations Physical (real-world) modeling
DSS
A communication-driven DSS supports more than one person working on a shared task;
A data-driven DSS emphasizes access to and manipulation of internal company data and, sometimes, external data.
A document-driven DSS manages, retrieves, and manipulates unstructured information in a variety of electronic formats.
A knowledge-driven DSS provides specialized problem-solving expertise stored as facts, rules, procedures, or in similar structures.
A model-driven DSSemphasizes access to and manipulation of a statistical, financial, optimization, or simulation model
DSS sub-types
DSS Non-routine
decisions◦ Often unique
problems Requires data +
human knowledge/wisdom
Subjective◦ Best choice is very
unclear
MIS Routine decisions
◦ Monthly◦ Weekly◦ Daily
Operational Easy to automate Often the best
choice is obvious
Key Differences: MIS vs DSS
DSS Analyze specific
problems
MIS Performance info
◦ More feedback driven
◦ How are we doing?
Different emphasis
DSS Interactive Reports
Flexible, adaptive reports
MIS Periodic Reports
Pre-specified, fixed reports
Format Differences
DSS Analytical
modeling + Knowledge base
MIS Processing of data
Methodoloyg Differences