Attributes of software that bear on the presence and appropriateness of a set of functions for specified tasks. Retrieved from " https: ISO has eight product quality characteristics in contrast to ISO 's six , and 31 subcharacteristics.
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Attributes of software isi bear on its ability to maintain a specified level of performance in case of software faults or of infringement of its specified interface.
Software product is defined in a broad sense: 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. This part provides the concepts introduced in the original standard ie a recommended quality model which categorizes software quality in six characteristics, which are further sub-divided into subcharacteristics.
Internal metrics are applicable to a non executable software product during designing and coding in early stage of development process. Attributes are not defined in the standard, as they vary between different software products. Attributes of software that bear on response and processing times and on throughput rates in performances its function. The objective of this standard is to provide a framework for the evaluation of 916-2 quality.
ISO/IEC - Wikipedia
The standard provides a framework for organizations to define a quality model for a software product. Attributes of software that bear on the effort needed to install the software in a specified environment. An attribute is an entity which can be verified or measured in the software product.
From Wikipedia, the free encyclopedia. They have been reworded and several new ones added. ISO standards by 91266-2 number. Information technology - Software quality characteristics and metrics - Part 1: Attributes of software that bear 912-2 the effort needed for diagnosis of deficiencies or causes of failures, or for identification of parts to be modified.
As a result, the notion of user extends to operators as well as to programmers, which are users of components such as software libraries. Compared to"security" and "compatibility" were added 1926-2 main characteristics.
Attributes of software that make the software adhere to standards or conventions relating to portability. 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 9126-22 from measures of the behaviour of the system.
Ideally, the internal quality determines the external quality and external quality determines quality in use. This standard stems from the GE model for describing software quality, presented in by McCall et al.
ISO 9126: The Standard of Reference
ISO has eight product quality characteristics in contrast to ISO 's sixand 31 subcharacteristics. Attributes of software that bear on the presence and appropriateness of a set of functions for specified tasks. The subcharacteristics have been moved from the annex to become part of the standard. There is also a definition of quality in use which defines the user's view as a result of using the software. This part provides internal metrics for measuring software quality characteristics.
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.
Attributes of software that bear on the amount of resource used and the duration of such use in performing its function.
This page was last edited on 12 Septemberat Retrieved from " https: The current standard is under review. This may be done, for example, by specifying target values for quality metrics which evaluates the degree of presence of quality attributes.