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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 It has been replaced by ISO/IEC.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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ISO/IEC TR – Software engineering — Product quality — Part 2: External metrics

Use British English Oxford spelling from January ISO standards by standard number. 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 objective of this standard is to provide 912-62 framework for the evaluation of software quality. List of International Electrotechnical Commission standards. Sio of software that bear on its ability to maintain a specified level of performance in case of software faults or of infringement of its specified interface.

ISO 9126: The Standard of Reference

These biases include changing priorities after the start isk a project or not having any clear definitions of “success”. ISO has eight product quality characteristics in contrast to ISO ‘s sixand 31 subcharacteristics.

Attributes of software that make the software adhere to standards or conventions relating to portability. Ideally, the internal quality determines the external quality and external quality determines quality in use. The current standard is under review. Compared to”security” and “compatibility” were added as main characteristics. Internal metrics are applicable to a non executable software 9126–2 during designing and coding in early stage of development process.

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Attributes of software that bear on response and processing times and on throughput rates in performances its function. Information technology – Software Product Evaluation – Quality characteristics and guidelines for their use – Information technology – Software quality characteristics and metrics – Part 3: The standard provides a framework for organizations to define a quality model for a software product.

ESSI-SCOPE Quality Characteristics and their application

This page was last edited on 12 Septemberat Quality characteristics and subcharacteristics. An external metric is a quantitative scale and measurement method, which can be 9162-2 for measuring an attribute or characteristic of a software product, derived from the behaviour of the system of which it is a part.

By using this site, you agree to the Terms of Use and Privacy Policy. Attributes of software that bear on the opportunity for its adaptation to different specified environments without applying other actions or means than those provided for this purpose for the software considered.

This may be done, for example, by specifying target values for quality metrics which evaluates the degree of presence of 912-62 attributes. Attributes are not defined in the standard, as they vary between different software products.

Attributes of software that make the software adhere to application related standards or conventions or regulations in laws and similar prescriptions.

Information technology – Software quality characteristics and metrics – Part 1: They have been reworded and several new ones added.

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Attributes of software that bear on the amount of resource used and the duration of such use in performing its function. This part provides external metrics for measuring software quality characteristics. 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 from measures of the behaviour of the system.

Attributes of software that bear on the 91262 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. An attribute is an entity which can be verified or measured in the software product.

91126-2 metrics are applicable to an executable software product during testing or operating in later stage of development and after entering to operation process. Attributes of software that bear on the effort needed for modification, fault removal or for environmental change.

Attributes of software that bear on its ability to prevent unauthorized access, whether accidental or deliberate, to programs or data. This part provides internal metrics for measuring software quality characteristics.

On doing so, however, it leaves up to each organization the task of specifying precisely its own model.