Operations research – optimization: The mathematical technique for best allocation of limited resources to maximize or minimize an objective is called

Difficulty: Easy

Correct Answer: Linear programming

Explanation:


Introduction / Context:
When resources such as materials, labour hours, machine time, or budget are limited, managers seek an optimal allocation that maximizes profit or minimizes cost. Linear programming (LP) is the core operations research method for such problems with linear objectives and constraints.



Given Data / Assumptions:

  • An objective function that is linear in decision variables (e.g., maximize profit = c1x1 + c2x2).
  • Linear constraints representing resource limits (e.g., a11x1 + a12x2 ≤ b1).
  • Non-negativity of decision variables.


Concept / Approach:
LP models define a feasible region (a convex polytope). The optimal solution lies at an extreme point of this region. Algorithms such as the simplex method or interior-point methods efficiently find the optimum in large problems.



Step-by-Step Solution:

Formulate decision variables representing production or allocation choices.Write the linear objective to maximize or minimize.Translate resource limits into linear inequalities or equations.Solve using simplex or an LP solver to get optimal variable values and shadow prices.


Verification / Alternative check:
Sensitivity analysis tests robustness of the solution to changes in coefficients, validating practical implementability.



Why Other Options Are Wrong:

  • Value analysis: improves product value by function–cost study, not optimization modeling.
  • Network analysis: schedules projects (CPM/PERT), not general resource allocation.
  • Queuing theory: analyzes waiting lines rather than solving linear allocation problems.


Common Pitfalls:
Modeling nonlinear realities as linear without justification; forgetting integer requirements that would require integer programming.



Final Answer:
Linear programming

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