Overview
ISO/IEC TS 33064:2025 - "Information technology - Process assessment - Process assessment model for safety processes" is a Technical Specification that defines a Process Assessment Model (PAM) focused on safety-related processes. Published as the first edition in 2025, it implements a two‑dimensional assessment approach (process and quality dimensions) and conforms to the requirements of ISO/IEC 33004 for use with process assessments conducted under ISO/IEC 33002. The PAM is intended to help assessors and organizations measure process performance and quality where systems and software have functional or non‑functional safety requirements.
Key Topics and Requirements
- Two‑dimensional PAM:
- Process dimension - defines processes, purposes, outcomes, base practices and process outputs.
- Quality dimension - uses a process measurement framework (process attributes for a selected quality characteristic) and associated process quality indicators.
- Assessment indicators:
- Process performance indicators to demonstrate achievement of process purposes and outcomes.
- Process quality indicators to show attainment of process attributes and support objective evidence collection for assessor judgments.
- Safety process set: Three SAF processes are defined:
- SAF.1 Safety management
- SAF.2 Safety engineering
- SAF.3 External resource qualification
- Measurement and evidence: The standard prescribes how to select indicator subsets appropriate to assessment scope, collect objective evidence, and apply rating/aggregation methods as specified in a documented assessment process.
- Scope limits: The document is not a domain safety standard and is not intended as a conformity verification against safety regulations; it supports measurement of process quality and improvement planning for safety‑related development.
Applications
ISO/IEC TS 33064:2025 is practical for:
- Process assessors and auditors performing safety‑focused process assessments.
- Safety engineers and safety assurance teams measuring maturity and effectiveness of safety lifecycle practices.
- Process improvement managers prioritizing improvements based on assessed process performance and quality indicators.
- Project managers and system/software developers in safety‑critical domains (automotive, medical, aerospace, railway, industrial control) who need to evaluate or improve safety management, engineering, or supplier resource qualification processes.
- Tool vendors and assessment tool integrators that implement PAM content for assessment automation.
Related Standards
- ISO/IEC 33001, 33002, 33003, 33004 - foundational process assessment series
- ISO/IEC 33020 - process measurement framework (can be incorporated)
- ISO/IEC TS 33060 & ISO/IEC TS 33061 - system and software life cycle process models (complements this TS)
- ISO/IEC/IEEE 15026 - safety/s assurance case guidance referenced for safety demonstration
ISO/IEC TS 33064:2025 helps organizations and assessors achieve consistent, evidence‑based judgements about the quality and improvement priorities of processes used to develop safety‑related systems.