Academic literature and professional manuals available via emphasize a multi-layered hierarchy of planning horizons: Planning Level Time Horizon Key Focus Areas Strategic Planning 1 to 5 Years
+-------------------------------------------------------+ | PRODUCTION PLANNING | | (Forecasting -> Resource Routing -> Scheduling) | +---------------------------+---------------------------+ | v +-------------------------------------------------------+ | PRODUCTION CONTROL | | (Dispatching -> Monitoring -> Corrective Action) | +-------------------------------------------------------+ Core Objectives of an Effective PPC System the fundamentals of production planning and control pdf
| Level | Time Horizon | Detail | Example | |-------|--------------|--------|---------| | Strategic (Long-term) | 1–5 years | Aggregate, product families | Capacity expansion, location decisions | | Tactical (Medium-term) | 3–18 months | Product groups, monthly/quarterly | Aggregate production planning, workforce sizing | | Operational (Short-term) | days to weeks | Individual items, daily/hourly | Master production schedule, shop floor dispatching | product families | Capacity expansion