| 1 |
Dependability is the ability to perform as and when required. A dependable item is one where
there is justified confidence that it operates as desired and satisfies agreed stakeholder needs
and expectations. Dependability has many attributes but is usually characterised in terms of
reliability, maintainability and supportability, and the resulting availability. In some cases,
attributes such as resilience, recoverability, durability, integrity, safety, security, and
trustworthiness are included in, or overlap with, dependability. |
| 2 |
This document provides guidance on:
• the meaning and significance of dependability from a business, technical and financial perspective;
• achieving dependability through suitable adaptation of organizational management systems such as those described in ISO 9001 (quality management) and ISO 55001 (asset management);
• the activities that are integrated into management systems and life cycle processes in order to achieve dependable systems, products and services;
• planning and implementing dependability activities throughout the life cycle to achieve and assure required outcomes, taking into account factors such as costs, safety, the environment, customer goodwill, brand and reputation. |