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V model and safety life cycle

V model

The V model in ISO 26262 is often used to illustrate the life cycle of functional safety.

Figure 1 — Overview of the ISO 26262 series of standards

All 12 parts are included in the V model. The safety life cycle consists of five phases:

    1. Concept phase (Part 3 of ISO 26262)
    1. Product development at the system level (Part 4)
    1. Product development at the hardware level (Part 5)
    1. Product development at the software level (Part 6)
    1. Production, operation, service and decommissioning (Part 7)

V model at the software level

part 6 page 4

FuSa safety life cycle

SOTIF safety life cycle

SOTIF is limited to the concept phase and system-level activities. The safety assurance of the intended functionality on software level is part of what may be called “Safety of Artificial Intelligence”.