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CSA ISO/IEC 15026

Information Technology - System and Software Integrity Levels

active, Most Current
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Organization: CSA
Publication Date: 1 March 2001
Status: active
Page Count: 22
scope:

This International Standard introduces the concepts of software integrity levels and software integrity requirements. It defines the concepts associated with integrity levels, defines the processes for determining integrity levels and software integrity requirements, and places requirements on each process. This International Standard does not prescribe a specific set of integrity levels or software integrity requirements. These must be established either on a project by project basis, or for a specific sector and/or country. This International Standard is applicable to software only. The system integrity level and the integrity levels of the non-software components are only required in this International Standard to determine the integrity levels of the software components.

This International Standard is intended for use by developers, users, procurers, and assessors of software products or systems containing software for the administrative and technical support of those products and systems.

A software integrity level denotes a range of values of a software property necessary to maintain system risks within tolerable limits. For software that performs a mitigating function, the property is the reliability with which the software must perform the mitigating function. For software whose failure can lead to a system threat, the property is the limit on the frequency or probability of that failure.

Software integrity requirements are requirements that must be met by the software engineering process used to develop the software, requirements that must be met by the software engineering products, and/or requirements that must be true of the software's performance over time in order to provide a degree of confidence in the software that is commensurate with the software's integrity level.

This International Standard does not prescribe the way in which integrity level determination is integrated with the overall system engineering life cycle processes.

Document History

January 1, 2020
Systems and software engineering — Systems and software assurance — Part 1: Concepts and vocabulary
This document defines assurance-related terms and establishes an organized set of concepts and relationships to form a basis for shared understanding across user communities for assurance. It...
January 1, 2015
Systems and software engineering - Systems and software assurance - Part 1: Concepts and vocabulary
This part of ISO/IEC 15026 defines assurance-related terms and establishes an organized set of concepts and relationships to establish a basis for shared understanding across user communities for...
January 1, 2013
Systems and software engineering - Systems and software assurance - Part 1: Concepts and vocabulary
This part of ISO/IEC 15026 defines terms and establishes an extensive and organized set of concepts and their relationships, thereby establishing a basis for shared understanding of the concepts and...
CSA ISO/IEC 15026
March 1, 2001
Information Technology - System and Software Integrity Levels
This International Standard introduces the concepts of software integrity levels and software integrity requirements. It defines the concepts associated with integrity levels, defines the processes...
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