Give definitions and examples of decision variables and problem parameters in the general decision modelling context.
Expert Answer
Decision variables: these are variable aspects of the decision modelling, which can be fully manipulatated within the feasible region and are under control of the decision maker. Examples of decision variables are quantity to be produced in regular and overtime, subcontracting, and ending inventory and backorder quantity for an aggregate production planning model; another example for a binary integer linear program is assignment of jobs to machines, in order to minimize the total flow time; an example of a simple LP
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