iso25000.com

ISO/IEC 25010

Security

degree to which a product or system protects information and data so that persons or other products or systems have the degree of data access appropriate to their types and levels of authorization. This characteristic is composed of the following subcharacteristics:

  • Confidentiality. Degree to which a product or system ensures that data are accessible only to those authorized to have access.
  • Integrity. Degree to which a system, product or component prevents unauthorized access to, or modification of, computer programs or data.
  • Non-repudiation. degree to which actions or events can be proven to have taken place, so that the events or actions cannot be repudiated later.
  • Accountability. Degree to which the actions of an entity can be traced uniquely to the entity.
  • Authenticity. Degree to which the identity of a subject or resource can be proved to be the one claimed.

Maintainability

This characteristic represents the degree of effectiveness and efficiency with which a product or system can be modified to improve it, correct it or adapt it to changes in environment, and in requirements. This characteristic is composed of the following subcharacteristics:

  • Modularity. Degree to which a system or computer program is composed of discrete components such that a change to one component has minimal impact on other components.
  • Reusability. Degree to which an asset can be used in more than one system, or in building other assets.
  • Analysability. Degree of effectiveness and efficiency with which it is possible to assess the impact on a product or system of an intended change to one or more of its parts, or to diagnose a product for deficiencies or causes of failures, or to identify parts to be modified.
  • Modifiability. Degree to which a product or system can be effectively and efficiently modified without introducing defects or degrading existing product quality.
  • Testability. Degree of effectiveness and efficiency with which test criteria can be established for a system, product or component and tests can be performed to determine whether those criteria have been met.

Portability

Degree of effectiveness and efficiency with which a system, product or component can be transferred from one hardware, software or other operational or usage environment to another. This characteristic is composed of the following subcharacteristics:

  • Adaptability. Degree to which a product or system can effectively and efficiently be adapted for different or evolving hardware, software or other operational or usage environments.
  • Installability. Degree of effectiveness and efficiency with which a product or system can be successfully installed and/or uninstalled in a specified environment.
  • Replaceability. Degree to which a product can replace another specified software product for the same purpose in the same environment.
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