ISO 26262-6:2018
Road vehicles — Functional safety — Part 6: Product development at the software level
Road vehicles — Functional safety — Part 6: Product development at the software level
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 57
- Дата публикации:
- 17 декабря 2018 г.
- Издание:
- ISO IS 26262 edition 2 version 1
- ICS:
- 43.040.10
This document is intended to be applied to safety-related systems that include one or more electrical and/or electronic (E/E) systems and that are installed in series production road vehicles, excluding mopeds. This document does not address unique E/E systems in special vehicles such as E/E systems designed for drivers with disabilities. NOTE Other dedicated application-specific safety standards exist and can complement the ISO 26262 series of standards or vice versa. Systems and their components released for production, or systems and their components already under development prior to the publication date of this document, are exempted from the scope of this edition. This document addresses alterations to existing systems and their components released for production prior to the publication of this document by tailoring the safety lifecycle depending on the alteration. This document addresses integration of existing systems not developed according to this document and systems developed according to this document by tailoring the safety lifecycle. This document addresses possible hazards caused by malfunctioning behaviour of safety-related E/E systems, including interaction of these systems. It does not address hazards related to electric shock, fire, smoke, heat, radiation, toxicity, flammability, reactivity, corrosion, release of energy and similar hazards, unless directly caused by malfunctioning behaviour of safety-related E/E systems. This document describes a framework for functional safety to assist the development of safety-related E/E systems. This framework is intended to be used to integrate functional safety activities into a company-specific development framework. Some requirements have a clear technical focus to implement functional safety into a product; others address the development process and can therefore be seen as process requirements in order to demonstrate the capability of an organization with respect to functional safety. This document does not address the nominal performance of E/E systems. This document specifies the requirements for product development at the software level for automotive applications, including the following: — general topics for product development at the software level; — specification of the software safety requirements; — software architectural design; — software unit design and implementation; — software unit verification; — software integration and verification; and — testing of the embedded software. It also specifies requirements associated with the use of configurable software. Annex A provides an overview on objectives, prerequisites and work products of this document.
Abstract
Overview
ISO 26262-6:2018 - Road vehicles - Functional safety - Part 6: Product development at the software level - defines requirements and guidance for developing safety-related automotive software. It is part of the ISO 26262 series (the automotive adaptation of IEC 61508) and applies to electrical/electronic (E/E) systems in series-production road vehicles (excluding mopeds and certain special-purpose E/E systems). The standard focuses on hazards caused by malfunctioning E/E systems and provides a framework to integrate functional safety activities into company-specific development lifecycles.
Key topics and technical requirements
ISO 26262-6 addresses the full software development stream with ASIL-dependent rigor and includes:
- Specification of software safety requirements - deriving software requirements from system-level safety goals.
- Software architectural design - partitioning, interfaces, and freedom from interference between software elements.
- Software unit design and implementation - coding practices, design constraints and use of configurable software.
- Software unit verification - static analysis, unit testing and verification artifacts.
- Software integration and verification - integration strategies, interface testing and architectural verification.
- Testing of embedded software - system-representative test environments and test coverage activities.
- Supporting topics - model-based development, software configuration management (normative), freedom from interference, and analysis of dependent failures (informative annexes).
- ASIL-dependent requirements and recommendations - different assurance activities scale with Automotive Safety Integrity Levels.
- Work products and objectives - explicit guidance on prerequisites, inputs and required deliverables for software lifecycle tasks.
Applications and practical value
ISO 26262-6 is intended for practical use in:
- Developing embedded automotive control software (braking, steering, powertrain, ADAS, etc.).
- Integrating existing software components or tailoring safety lifecycle for alterations to products in production.
- Structuring verification and testing strategies to demonstrate functional safety compliance.
- Guiding tool qualification, configuration management and software safety analyses.
Benefits include clearer traceability from safety goals to software artifacts, reduced systematic-design errors, and evidence supporting functional safety assessments and audits.
Who should use this standard
- Automotive OEMs and Tier-1/2 suppliers developing safety-related E/E software
- Software and system architects, safety engineers, V&V teams, and project managers
- Tool vendors and consultants supporting ISO 26262 processes
Related standards
- ISO 26262 (whole series) - overall automotive functional safety framework
- IEC 61508 - sector-agnostic functional safety standard that ISO 26262 adapts
Keywords: ISO 26262-6:2018, functional safety, automotive software, ASIL, embedded software testing, software architecture, model-based development.
Технические детали
- Технический комитет
- ISO/TC 22/SC 32 - Electrical and electronic components and general system aspects
- SKU
- ISO 26262-6:2018
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