FREE online courses on Information Technology - Chapter 2 FRAMEWORKS FOR IT
- Decision-Oriented Frameworks
In the previous chapter we discussed the decision-making
stages of intelligence, design, and choice proposed by Simon. Anthony is
concerned with the purpose of decision-making activities, whereas Simon stresses
methods and techniques. In addition to the stages listed above, Simon proposes
that there are two types of decisions: programmed and nonprogrammed. Programmed
decisions ar routine and repetitive and require little time spent in the design
stage. Posting journal entries would be an example of a programmed activity. Nonprogrammed
decisions are novel and unstructured, for example, deciding on the marketing mix
for a set of products. There is no one solution and much time is spent in design
since the problem has probably not appeared before. Clearly, few decision are at
one polar extreme or the other and fall along a continuum between programmed and
nonprogrammed.
Different types of decision-making technology are suitable
for attacking each type of problem. Programmed decisions have traditionally been
made through habit, by clerical procedures, or with other accepted tools.
More-modern techniques solving programmed decisions involve operations,
research, mathematical analysis, modeling, and simulation. Nonprogrammed
decisions tend to be solved through judgement, intuition, and rules of thumb.
Over time, we expect to see new technology providing more programming for
nonprogrammed decisions; that is, decisions will tend to move toward the more
programmed pole of the continuum.
A framework synthesizing the work of Anthony and Simon is
very appealing because it helps us classify a variety of systems. Table below
classifies Anthony's decision types from operational control to strategic
planning, on a scale of structured to unstructured.
In a structured decision, the three phases, intelligence,
design, and choice are fully structured. In an unstructured decision, all three
phases are unstructured. Any decision in between the two extremes is
semi-structured. As in Simon's framework, the line between structured decisions
shifts over time as new decision techniques are developed and applied to
unstructured problems.
Classification
|
Operational control
|
Management control
|
Strategic Planning
|
Stuctured
Semi-structured
Unstructured
|
Order processing, accounts payable
Inventory control, production planning
Cash management
|
Budgets, personnel reports
Analysis of variance
Management of personnel
|
Warehouse location, transportation mode mix
Introduction of new product
Planning for R&D
|
Table: The Gorry-Scott Morton Framework
From Table above, it appears that many information systems
have attacked problems in the structured, operational control cell. These
problems are similar in many organizations and are among the most easily
understood. It is easier to mechanize these decisions or strategic planning
decisions. Since operational systems are important to the daily functioning of
the firm, they are high-priority applications.
Many individuals in the information systems field believe
that unstructured decisions have the greatest payoff for the organization. The
development of systems for unstructured problems is major challenge and is
undoubtedly more risky than the development of comparable systems for structured
problems. The goal and design techniques for unstructured decisions differ from
those for structured ones. In the structured case, the goal of an information
system is usually to improve the processing of information. In an unstructured
situation, the goal of the information system is more likely to improve the
organization and presentation of information inputs to the decision maker.