Correct option is B
The correct sequence of scheduling decisions — from long-term to short-term — is as follows:
Capacity Planning (D) – This is a long-term decision that looks years ahead. It determines the overall level of resources required to meet forecasted demand.
Aggregate Planning (A) – This is a medium-term planning process (usually covering 3 to 18 months). It matches supply and demand by determining overall output levels.
Master Schedule (C) – This is a detailed plan derived from aggregate planning. It translates the general plan into specific quantities and timelines (weeks/months).
Short-term Scheduling (B) – These are daily or hourly decisions that assign jobs to specific machines, workers, or work centers.
The sequencing logic follows a hierarchical approach from strategic to tactical to operational decision-making in production planning and control.
Information Booster:
Capacity Planning defines the maximum output potential of a system over a long period. It ensures the facility can meet future demand.
Aggregate Planning ensures that overall supply can meet expected demand while minimizing costs.
Master Schedule bridges the gap between aggregate planning and daily scheduling. It answers what and when to produce.
Short-term Scheduling handles the precise allocation of tasks and jobs — focused on daily/hourly activities.
All four stages are interlinked, with Capacity Planning providing a foundation for the others.
Efficient scheduling reduces lead time, boosts productivity, and ensures optimal resource use.
Moving from strategic (long-term) to operational (short-term) ensures structured decision-making.
This sequence is crucial in manufacturing, service operations, and project-based industries.

