ISO 9126-2 PDF

ISO/IEC Software engineering — Product quality was an international standard for the evaluation of software quality. It has been replaced by ISO/IEC. ISO/IEC TR (E) ISO/IEC Software engineering – Product quality – Part 2: External metrics Contents Download Table | Examples of the use of base measures in ISO from publication: An Information Model for Software Quality Measurement with ISO.

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List of International Electrotechnical Commission standards.

An attribute is an entity which can be verified or measured in the software product. The standard provides a framework for organizations to define a quality model for a software product. External metrics are applicable to an executable software product during testing or operating in later stage of development and after entering to operation process.

ISO/IEC 9126

ISO standards by standard number. Information technology – Software quality characteristics and metrics – Part 2: Ieo using this site, you agree to the Terms of Use and Privacy Policy.

Use British English Oxford spelling from January Attributes of software that make the software adhere to application related standards or conventions or regulations in laws and similar prescriptions. Quality characteristics and subcharacteristics. Attributes of software that bear on opportunity and effort using it in the place of specified other 91262 in the environment of that software.

ISO 9126: The Standard of Reference

As a result, the notion of user extends to operators as well as to programmers, which are users of components such as software libraries. It defines six product quality characteristics and in an annex provides a suggestion of quality subcharacteristics. An internal metric is a quantitative scale and measurement method, which can be used for measuring an attribute or characteristic of a software product, derived from the product itself, either direct or indirect it is not derived isso measures of the behaviour of the system.

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Attributes of software that bear on the effort needed for diagnosis of deficiencies or causes of failures, or for identification of parts to be modified.

The subcharacteristics have been moved from the annex to become part of the standard. Information technology – Software Product Evaluation – Quality characteristics and guidelines for their use – ISO has eight product quality characteristics in contrast to ISO ‘s sixand 31 subcharacteristics. Each quality sub-characteristic e. Attributes of software that bear on the capability to re-establish its level of performance and recover the data directly affected in case of a failure and on the time and effort needed for it.

ISO/IEC – Wikipedia

This part provides internal metrics for measuring software quality characteristics. Compared to”security” and “compatibility” were added as main characteristics. An external 9126–2 is a quantitative scale and measurement method, which can be used for measuring an attribute or characteristic of a software product, derived from the behaviour of the system of which it is a part.

Attributes of software that bear on the effort needed to install the software in a specified environment. Internal metrics are applicable 926-2 a non executable software product during designing and coding in early stage of development process. Views Read Edit View history.

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ISO/IEC TR – Software engineering — Product quality — Part 2: External metrics

Attributes are not defined in the standard, as they vary between different software products. Retrieved from ” https: This may be done, for example, by specifying target values for quality metrics which evaluates the degree of presence of quality attributes. 9126-

Information technology – Software quality characteristics and metrics – Part 1: Attributes of software that bear on response and processing times and on throughput rates in performances its function. Software product is defined in a broad sense: Attributes of software that bear on the amount of resource used and the duration of such use in performing its function.

Information technology – Software quality characteristics and metrics – Part 3: From Wikipedia, the free encyclopedia. Attributes of software that make the software adhere to standards or conventions relating to portability. This standard stems from the GE model uso describing software quality, presented in by McCall et al.

This part provides the concepts introduced in the original standard ie a recommended quality model 926-2 categorizes software quality in six characteristics, which are further sub-divided into subcharacteristics. This page was last edited on 12 Septemberat

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