NYNEX Must Schedule Round-The-Clock Coverage for Its Telephone Operators

question 47

Essay

NYNEX must schedule round-the-clock coverage for its telephone operators.To keep the number of different shifts down to a manageable level,it has only four different shifts.Operators work eight-hour shifts and can begin work at either midnight,8 a.m. ,noon,or 4 p.m.Operators are needed according to the following demand pattern,given in four-hour time blocks.
Formulate this scheduling decision as a linear programming problem,defining fully your decision variables and then giving the objective function and constraints.

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Definitions:

Current Assets

Assets that are expected to be converted into cash, sold, or consumed within one year or within the normal operating cycle of a business.

Debt Securities

Financial instruments representing money borrowed that must be repaid, often with interest, including bonds, bills, and notes.

Fair Value

The estimated price at which an asset can be bought or sold in a current transaction between willing parties.

Unrealized Gain

The increase in value of an asset or investment that has not been sold, therefore not yet generating actual profit.