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 It has been replaced by ISO/IEC.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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Information technology – Software Product Evaluation – Quality characteristics and guidelines for their use – The standard provides a framework for organizations to define a quality model for a software product. Attributes of software that bear on its ability to prevent unauthorized access, whether accidental or deliberate, to programs or data. An external 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 behaviour of the system of which it is a part.

Compared to”security” and “compatibility” were added as main characteristics. Attributes of software that bear on response and processing times and on throughput rates in performances its function.

Attributes of software that bear on the opportunity for its adaptation to different specified environments without izo other actions or means than those provided for this purpose for the software considered. Ideally, the internal quality determines the external quality and external quality determines quality in use. Attributes are not defined in the standard, as they vary between different software products.

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ESSI-SCOPE Quality Characteristics and their application

Attributes of software that bear on the effort needed to install the software in a specified environment. This page was last edited on 12 Septemberat Attributes izo 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. Quality-in-use metrics are only available when the final product is used in real conditions.

Attributes of software that bear on the amount of resource used and the duration of such use in performing its function. 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. Information technology – Software quality characteristics and iiso – Part 1: An attribute is an entity which can be verified or measured in the software iao.

ISO 9126: The Standard of Reference

Attributes of software that make the software adhere to application related standards 9162-2 conventions or regulations in laws and similar prescriptions. The current standard is under review. Software product is defined in a broad sense: Information technology – Software quality characteristics and metrics – Part 2: 91262- a result, the notion of user extends to operators as well as to programmers, which are users of components such as software libraries.

They have been reworded and several new ones added.

ISO/IEC – Wikipedia

From Wikipedia, the free encyclopedia. Use British English Oxford spelling from January Internal metrics are applicable to a non executable software product during designing and coding in early stage of development process. This lso be done, for example, by specifying target values for quality metrics which evaluates the degree of presence of quality attributes. Attributes of software that bear on the presence and appropriateness of uso set of functions for specified tasks.

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ISO/IEC 9126

This part provides external metrics for measuring software quality characteristics. These biases include changing priorities after the start of a project or not having any clear definitions of “success”.

There is also a definition of quality in use which defines the user’s view as a result of using the 916-2.

The objective of this standard is to provide a framework for the evaluation of software quality. List of International Electrotechnical Commission standards. 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.

Information technology – Software quality is and metrics – Part 3: Retrieved from ” https: ISO has eight product quality characteristics in contrast to ISO ‘s sixand 31 subcharacteristics. Attributes 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.