ISA-95 is an international standard (ANSI/ISA‑95, also published as IEC 62264) that specifies models, terminology, and interface structures for integrating enterprise and control systems in manufacturing.
Operationally, ISA‑95:
- Defines functional levels for manufacturing activities, from enterprise planning to process control (commonly Levels 0–4).
- Provides reference models for how information flows between business systems (such as ERP) and manufacturing systems (such as MES, SCADA, and control systems).
- Standardizes key concepts, object models, and data structures related to production, quality, inventory, and maintenance.
- Describes interfaces between enterprise-level applications and manufacturing operations management applications.
In practice, ISA‑95 is used as a blueprint for designing, documenting, and implementing integrations between IT systems and operational technology (OT) in manufacturing environments.