Types of Information
by Galen Burkhart
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Types of Information
What are transactions - A transaction is a exchange between two parties that is recorded and stored in a computersystem.
Provides ways to collect, store,
process, display and modify
Many transactions can be
Information Collected is stored
on a database.
Information can be used to make regularly
scheduled reports like monthly bills, Weekly
paychecks and inventory summary's.
Examples of TPS's are Payroll,
Accounting, Sales and inventory
Limitations of the TPS are the Detailed
reports that only provide basic information
Major goal of the MIS is to increase efficancy of the managment.
Uses the Data collected by the TPS to
help managers make routine business
The MIS can produce Scheduled as
well as ad hoc (on demand) Reports
The MIS also produces summary reports that
combines groups of total data to help with
tactical and strategic planning.
The MIS can produce exception reports that
contains information that is outside of normal
or acceptable ranges.
Limitations Cannot provide models or
projections very important strategic planning
Decision Support System
A typical DDS used modeling tools like spredsheets to hlep managers with What if sitituations, and can also include outside sources like stocmarket reports.
Helps people make decision by directly manipulating
data, analyzing data from external sources,
generating statistics projections and creating
The DDSs can be used to make solve many
problems because it contains a good
selection of decision making tools.
A special type of (DDS) is the executive information system
(EIS) designed to provide senior managers with strategic
management activities like Setting policy's and planing
Decision makers use DDSs to make Decision
models like the cash flow model that helps
them see what desicon will be best for business
a Decision Model is a numerical
representation of a realistic
DDSs also use Decision Quarry's -the
question or set of questions describing what
data is to be gathered to make a decision.
Limitations the DDS can help people arrive at a
decision but cannot actually make the decision for
them only appropriate when used by trained
An expert system is sometimes
refereed to as a knowledge biased
It is designed to analyze data
and help the used arrive at a
The facts and rules of the system are usually taken
from interviewing one or more expert on a subject and
then incorporating that information into a knowledge
The knowledge base can be manipulated by software
called an Inference Engine. this process of testing and
designing the rules in a expert system is called knowledge
Designed to solve a
specific problem or Domain.
The Expert system can be designed to
deal with uncertainty using Fuzzy
Fuzzy Logic is designed to
help deal with imprecise
data., Fuzzy logic uses Questions biased on certainty (EX
are you 98% sure you sall that) it can then give you
a approximate answer 95% sure you saw a Grey
It works be analyzing the data you give it
with the data it has to try and you the best
answer it has.
Analyzes every account
entry used in real-time.
Uses Rollback to ensure that
every transaction processed
Rollback works by checking you account
before the transaction takes place to make
sure no errors occur if the transaction fails
the account will return to its original state.
Examples - Online banking and ATMs.