ISO 22549-2:2020

Overview

ISO 22549-2:2020 - “Automation systems and integration - Assessment on convergence of informatization and industrialization for industrial enterprises - Part 2: Maturity model and evaluation methodology” defines a structured maturity model and a repeatable evaluation methodology to assess how well industrial enterprises integrate information technology into production (convergence of informatization and industrialization, CII). The standard supports industrial digital transformation by describing maturity levels, principles for constructing evaluation questionnaires, and guidance for conducting maturity evaluations.

Key topics and requirements

• Maturity model (Levels 0–5): Defines progressive maturity indicators and characteristics:
  • Level 0 - Unidentified
  • Level 1 - Identified
  • Level 2 - Measured
  • Level 3 - Analysed
  • Level 4 - Optimized
  • Level 5 - Autonomous (CPS/IoT/AI-enabled)
• Questionnaire-based evaluation:
  • Components are evaluated at the activity level.
  • Questions are binary (“YES” / “NO”) and structured by maturity level.
  • All questions for a level must be answered “YES” to advance to the next level.
• Assessment aspects and activities (examples):
  • Infrastructure: capital investment, organization & planning, equipment and facilities management, information resources management, information security management.
  • Domain applications: product design (design automation, BOM/parts management, engineering change management, prototyping), process and production functions.
  • Integration aspects: comprehensive integration and collaborative integration across intra- and inter-enterprise systems.
• Evaluation methodology guidance: Instructions on constructing questionnaires, mapping activities to maturity indicators, and using ACII reference model components (see Annex A for example questionnaires).
• Normative linkage: Uses ISO 22549-1 (framework and reference model) as the foundational reference.

Applications and who should use it

• Industrial enterprises aiming to benchmark and plan digital transformation, identify weaknesses and prioritize improvements in IT–OT convergence.
• Internal departments such as production, quality, inventory and operations management that sponsor or carry out maturity assessments.
• Consultants, system integrators and government bodies performing third‑party assessments or developing digitalization roadmaps.
• Use cases include readiness assessments for Industry 4.0 initiatives, planning MES/ERP/PLM integrations, improving information security posture, and progressing from data collection to autonomous, AI-driven production.

Related standards

• ISO 22549-1: Framework and reference model for ACII (normative reference for Part 2).
• Developed by ISO/TC 184 (Automation systems and integration), Subcommittee SC 05.

Keywords: ISO 22549-2:2020, maturity model, evaluation methodology, convergence of informatization and industrialization, ACII, digital transformation, industrial enterprises, assessment, questionnaires, information resources, information security, CPS, IoT, AI.