Operations research
Speedrun
Goal Programming in 30 Seconds
Goal programming in 30 seconds. Go.
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Lesson notes
Key points
- Many goals at once: Goal programming handles several conflicting targets in one model.
- Targets, not limits: Each goal sets a target level instead of a hard constraint.
- Deviation variables: d-minus measures underachievement; d-plus measures overachievement.
- Goal constraint form: Expression plus d-minus minus d-plus equals the target.
- Minimise unwanted gaps: The objective minimises only the deviations you dislike.
- Weights or priorities: Use weights, or solve goals strictly in priority order.
Takeaway: Goal programming minimises unwanted deviations from targets.
Quick check: In goal programming, what does the d-plus variable measure?
- Underachievement of a goal
- Overachievement of a goal
- The goal's priority weight
d-plus is the amount by which the target is exceeded.
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