10-08-2012, 11:11 AM
Management Information Systems vs.Decision Support Systems
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MIS: The Big Picture
MIS provides information about the performance of an organization
Think of entire company (the firm) as a system.
An MIS provides management with feedback
MIS: Feedback for a Firm
Q: How are we doing?
A: Look at the report from the MIS
Generic reports: Sales, Orders, Schedules, etc.
Periodic: Daily, Weekly, Quarterly, etc.
Pre-specified reports
Obviously, such reports are useful for making good decisions.
MIS vs. DSS: Big Differences
In a DSS, a manager generates the report through an interactive interface
Flexible & Adaptable reports
DSS Reporting is produced through analytical modeling, not just computing an average, or plotting a graph.
Business Models are programmed into a DSS
More Modeling
Price Point Modeling – model what
would happen if you lowered or raised the
price of your product
uses information about
your customers income and
your competitors prices
uses well-know supply and demand models
More MIS Reports
Demand Reports and Responses
Available whenever a manager needs them, updated in real-time.
Push Reporting
Information is pushed to a managers computer
Example: Report is pushed every time a supplier is late with a shipment
MIS Reporting is all about giving managers feedback and doesn’t necessarily help directly with decision making.
How is DSS reporting different?
Modeling helps predict the outcome of a decision.
This directly helps you make a decision
Possibly an optimal decision
With a DSS you can explore possible alternatives.