by Michael Shepard
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The computer analyzes the data and
then actually makes a decision.
Focuses on answering questions
from a particular field or domain.
Information in an expert system is gathered from
experts and then put into a knowledge base.
It can use fuzzy logic to indicate
how sure it is of a decision.
An expert system work by a series of rules.
If the system does not have any rules, it
can learn on its own with a neural
Trial and error trains the
network as well as human
Decision Support System
Helps make decisions by manipulating,
analyzing, projecting, and modeling data.
Does not make the decision.
Can make decision models, numeric
representations of real situations.
Can read queries from managers on what
information they need to solve a
Requires one to have a
extensive knowledge of an area.
Creates reports for managers
to base their decisions on.
MIS can display information in
Can generate scheduled reports
as well as ad-hoc, reports base
on certain abnormal criteria.
Summary reports can
summarize a known set of data.
Exception reports can present
data outside acceptable ranges.
Manges exchange between two
Multiple transactions at a time
Stores in databases
Generates regular reports
Old versions used batch processing
Newer versions use online
Uses rollback and commit to
Helps mangers plan budgets,
policies, and other high level