IT532 - SYSTEMS ANALYSIS - CLASS 2
General Systems Model of the Firm
See class handout and discussion.
We can place systems into broad categories depending on where
they are located with respect to the general model of the firm:
- Transaction Processing Systems (TPS)
These systems capture and process data that is related to organizational
Most of these transactions occur at the operational level
of the organization.
They are data generated by the physical system.
- Management Information System (MIS)
These systems convert the data from transaction processing into
information that managers use to make decisions that impact the
operational level of the organization.
Their output is based on internal data.
- Executive Information System (EIS/DSS)
These systems provides information to executives that help them to
determine and set standards that guide management's decision making
Data and/or information that is used often comes from the environment
as well as from within the organization.
These systems are sometimes called decision support systems.
Most practical systems have elements of all three systems types.
There are also two types of supporting systems:
- Expert System
These systems capture the knowledge and expertise of a
decision maker to simulate the way that they make decisions.
- Office Information System
These systems provides for improved work flow and communications
Prepared by David L. March -- Last Revised on April 15, 2000
COPYRIGHT © 1998-2000 BY DAVID L. MARCH