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 It has been replaced by ISO/IEC.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.
|Published (Last):||10 June 2015|
|PDF File Size:||15.80 Mb|
|ePub File Size:||15.25 Mb|
|Price:||Free* [*Free Regsitration Required]|
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. Attributes of software that bear on its ability to prevent unauthorized access, ixo accidental or deliberate, to programs or data.
Quality-in-use metrics are only available when the final product iiso used in real conditions. The standard provides a framework for organizations to define a quality model for a software product. There is also a definition of quality in use which defines the user’s view as a result of using the software.
This page was last edited on 12 Septemberat ISO standards by standard number. As a result, the notion of user extends to operators as well as to programmers, which are users of components such as software libraries. This part provides internal metrics for measuring software quality characteristics.
Attributes of software that bear on the presence and appropriateness of a set of functions for specified tasks. This part provides external metrics for measuring software quality characteristics.
ISO/IEC TR – Software engineering — Product quality — Part 2: External metrics
Each quality sub-characteristic e. Compared to”security” and “compatibility” were added as main characteristics. Attributes of software that bear on the effort needed for modification, fault removal or for environmental change.
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 oso behaviour of the system of which it is a part.
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. Software product is defined in a broad kso An attribute is an entity which can be verified or measured in the software product. This may be done, for example, by specifying target values for quality metrics which evaluates the degree of presence of quality attributes.
The current standard is under review. Information technology – Software quality characteristics and metrics – Oso 2: Attributes of software that bear on response and processing times and on throughput rates in performances its function.
Quality characteristics and subcharacteristics. Attributes of software that bear on its ability to sio a specified level of performance in case of software faults or of infringement of its specified interface.
From Wikipedia, the free encyclopedia. 916-2 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.
Information technology – Software quality characteristics and metrics – Part 1: Ideally, the internal quality determines the external quality and external quality determines quality in use. It defines six product quality characteristics and in an annex provides a suggestion of quality subcharacteristics. Attributes of software that bear on the amount of resource used and the duration of such use in performing its function.
Information technology – Software Product Evaluation – Quality characteristics and guidelines for their use – This standard stems from the GE model for describing software quality, presented in by McCall et al. The subcharacteristics have been moved from the annex to become part of the standard. External 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 opportunity and effort using it in the place of specified other software in the environment of that software. Information technology – Software quality characteristics and metrics – Part 3: 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.
List of International Electrotechnical Commission standards. These biases include changing priorities after the start of a project or not having any clear definitions of “success”.
Attributes of software that make the software adhere to standards or conventions relating to portability. Attributes of software that bear on the effort needed to install the software in a specified environment.
Internal metrics are applicable to a non executable software product during designing and coding in early stage of development process. Views Read Edit View history. On doing so, however, it leaves up to each 9216-2 the task of specifying precisely its own model. They have been reworded and several new ones added. 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.
The objective of this standard is to provide a framework for the evaluation of software io. 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.