Spolehlivost

Oblast zaměření: Spolehlivost
Komise : IEC/TC 56 (Dependability)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 12.03.2019
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This International Standard is intended to define a procedure to verify if a reliability of an item/system complies with the stated requirements. The requirement is assumed to be specified as the percentage of success (success ratio) or the percentage of failures (failure ratio).

This document can be used where a number of items are tested (trials) and classified as passed or failed. It can also be used where one or a number of items are tested repeatedly. The procedures are based on the assumption that the probability of success or failure is the same from trial to trial (statistically independent events). Planes for fixed trial/failure terminated tests as well as truncated sequential probability ratio tests (SPRT) are included. This document contains extensive tables with ready-to-use SPRT plans and their characteristics for equal and non-equal risks for supplier and customer.

In the case of the reliability compliance tests for constant failure rate/intensity, IEC 61124 should be applied.

Oblast zaměření: Spolehlivost
Komise : IEC/TC 56 (Dependability)
Původce: ISO\IEC\CEN\CENELEC
K připomínkám do: 26.03.2019
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This document provides guidance on a review methodology for dependability from a technical perspective that is applicable at all stages of a system life cycle. Application of the guidance improves dependability of the target item and its life cycle by triggering appropriate actions against potential dependability problems at appropriate times.

NOTE   This document does not cover reviews that necessitate involvement of top management such as reviews specific to open systems dependability.

It provides guidance for developers, manufacturers, users and third-party independent reviewers such as consulting organization.

This document describes a dependability review methodology focusing on:

coherence of review activities across life cycle stages and their impact on dependability;

stakeholder identification and how this affects dependability review activities;

the relationships between different types of review;

procedures for effective dependability reviews;

examples of dependability review activities.