ISO IEC IEEE 42020-2019 PDF

Full title and description

ISO/IEC/IEEE 42020:2019 — Software, systems and enterprise — Architecture processes. An international standard that defines a coherent set of processes for the governance, management, conceptualization, evaluation and elaboration of architectures and for the enablement activities that support those processes across projects and organizations.

Abstract

This standard establishes process descriptions for the governance and management of a collection of architectures and the architecting of entities. It defines an enablement process to support architecture activities and specifies processes applicable across lifecycle stages and organizational contexts. The document is intended to complement existing lifecycle and architecture description standards and to help ensure architecture practices influence business and mission success.

General information

• Status: Published (confirmed as current following ISO review).
• Publication date: 23 July 2019.
• Publisher: Joint publication by ISO, IEC and IEEE (ISO/IEC/IEEE).
• ICS / categories: 35.080 (Software).
• Edition / version: Edition 1.0 (2019).
• Number of pages: 110 pages (published edition).

Scope

ISO/IEC/IEEE 42020:2019 specifies processes for architecture governance, architecture management, architecture conceptualization, architecture elaboration and architecture evaluation, plus an enablement process that supports these activities. The processes are applicable to single projects and to organizations managing multiple projects, and they may be applied throughout the life of an architecture entity or a collection of architectures. The standard is intended to be used alongside system and software lifecycle standards, architecture description standards and enterprise architecture guidelines.

Key topics and requirements

• Definition of a process reference model for architecture activities: governance, management, conceptualization, elaboration and evaluation.
• Requirements for an enablement process providing supporting activities, governance interfaces and resources for architecting.
• Guidance on tailoring processes to project, organizational and lifecycle contexts.
• Stakeholder-driven concerns and outcomes: specifying how to identify, record and address stakeholder concerns within architecture processes.
• Lifecycle applicability: mapping architecture processes to lifecycle stages (conception, development, implementation, operation, sustainment, decommissioning).
• Integration with system and software lifecycle processes (e.g., ISO/IEC/IEEE 15288 and 12207) and with architecture description and evaluation practices.
• Process inputs, outputs, roles, responsibilities and typical tasks for each architecture process.

Typical use and users

Used by enterprise architects, system and software architects, systems engineers, program and project managers, acquisition and procurement teams, architecture governance boards and technical authorities. Typical uses include establishing or improving architecture practices, defining architecture processes within an organization, aligning architecture work to lifecycle and governance structures, and supporting architecture evaluation and decision-making.

Related standards

Commonly used alongside and referenced with ISO/IEC/IEEE 15288 (system life cycle processes), ISO/IEC/IEEE 12207 (software life cycle processes), ISO/IEC/IEEE 42010 (architecture description), ISO/IEC/IEEE 42030 (architecture evaluation framework), predecessor IEEE 1471 and other enterprise/architecture modelling standards (for example ISO 15704).

Keywords

architecture processes; architecture governance; architecture management; architecting; enablement; architecture conceptualization; architecture elaboration; architecture evaluation; stakeholder concerns; lifecycle integration; enterprise architecture; systems engineering.

FAQ

Q: What is this standard?

A: ISO/IEC/IEEE 42020:2019 is an international standard that defines a set of processes for governance, management and performance of architecting activities and collections of architectures across projects and organizations.

Q: What does it cover?

A: It covers process descriptions for architecture governance, architecture management, conceptualization, elaboration and evaluation, plus an enablement process to provide support, resources and governance interfaces. It addresses how these processes apply across lifecycle stages and organizational contexts.

Q: Who typically uses it?

A: Enterprise, systems and software architects; systems engineers; program and project managers; procurement and acquisition teams; architecture review and governance boards; and organizations seeking to establish or improve architecture practices.

Q: Is it current or superseded?

A: The standard was published on 23 July 2019 and has been maintained through ISO/IEC/IEEE publication processes; it was reviewed and confirmed current during the periodic review cycle. As of March 2, 2026 the 2019 edition remains the published edition.

Q: Is it part of a series?

A: Yes. It belongs to the family of architecture and lifecycle standards published jointly by ISO, IEC and IEEE (often referenced together with ISO/IEC/IEEE 42010, 42030, 15288 and 12207) and is used as part of an integrated set of standards for systems, software and enterprise architecture activities.

Q: What are the key keywords?

A: Architecture governance, architecture management, architecting, enablement, evaluation, stakeholder concerns, lifecycle integration, architecture processes.