DECISION SUPPORT SYSTEMS
A Decision Support
System (DSS) is an interactive information system that provides information,
models and data manipulation tools to help make decisions in semi structured
and unstructured situations where no one knows exactly how the decision should
be made. The traditional DSS approach includes interactive problem solving direct
use of models, and user-controllable methods for displaying and analyzing data and
in formulating and evaluating alternative decisions. This approach grew out of dissatisfaction
with the traditional limitations of TPS and MIS. TPS focused on record keeping
and control of repetitive clerical processes. MIS provided reports for management
but were often inflexible and unable to produce the information in a form in
which managers could use it effectively. In contrast, DSSs were intended to support
managers and professionals doing largely analytical work in less structured situation
with unclear criteria for success. DSSs are typically designed to solve the structured
parts of the problem and help isolate places where judgment and experience are
required.
