Result (outcome) variables
- Reflect the level of effectiveness of a system, ho well the system attains its goals. These variables are outputs.
- Considered dependant
Decision variable (pg 58, 152)
- Describes alternative courses of action. The decision mkaer controls the decision variables.
uncontrollable variables (or parameters)
- Factors that affect result varibales but are not under the control of the decision maker.
- Some of these variables limit the decion maker and therefore form what are called constraints of the problem.
- Reflect intermediate outcomes in mathematical models. eg. determining machine maintenance scheduling, spoilage, total profit, employee satisfaction
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