Parts of ISO/IEC 9126

The standard is divided into 4 parts as depicted in the following figure:

Parts of Standard

  1. ISO/IEC 9126-1: Quality Model
  2. ISO/IEC 9126-2: External Metrices
  3. ISO/IEC 9126-3: Internal Metrices
  4. ISO/IEC 9126-4: Quality in use Matrices

ISO/IEC 9126 in Software Engineering

The International Organization for Standardization (ISO) has established a series of ISO and ISO/IEC standards for software quality. Starting with the ISO 9000-3 instructions for implementing the ISO 9001 standard, which is concerned with quality assurance processes, to the creation, supply, installation, and maintenance of computer software. The ISO/IEC 9126  standard for software product quality should be used in conjunction with ISO/IEC 14598 for evaluating software products.

Table of Content

  • What is ISO/IEC 9126?
  • Parts of ISO/IEC 9126
  • Quality Model
  • External Metrics
  • Internal Metrics
  • Quality in use metrics
  • History of ISO/IEC 9126
  • Questions For Practice ON ISO/IEC 9126
  • Conclusion
  • Frequently Asked Questions

Similar Reads

What is ISO/IEC 9126?

ISO/IEC 9126 is an international standard proposed to make sure ‘quality of all software-intensive products’ which includes a system like safety-critical where in case of failure of software lives will be in jeopardy. ISO i.e. International Organization for Standardization and IEC i.e. International Electrotechnical Commission have developed ISO/IEC 9126 standards for software engineering → Product Quality to provide an all-inclusive specification and evaluation model for the quality of the software product....

Parts of ISO/IEC 9126

The standard is divided into 4 parts as depicted in the following figure:...

Quality Model

Quality Model describes the quality model framework which explains relationships between different approaches to quality as well as identifying quality characteristics and sub-characteristics of software products....

External Metrics

External Metrices is used to describe external metrics that are used to measure characteristics and sub-characteristics which are identified in quality model....

Internal Metrics

Internal Metrices is used to describe internal metrics that are used to measure characteristics and sub-characteristics which are identified in quality model....

Quality in use metrics

Quality in use metrices is used to identify metrics that are used to measure the effects of combined quality characteristics for users....

History of ISO/IEC 9126

Below are some points related to history of ISO/IEC 9126...

Questions For Practice ON ISO/IEC 9126

1. According to the ISO-9126 Standard Quality Model, match the attributes given in List 1 with their definition in List-2. [UGC-NET CS 2019]...

Conclusion

ISO/IEC 9126 is a standard given by the international organization for standardization (ISO) for evaluating software product quality. It is divided into four parts: Quality Model, External Metrics, Internal Metrics, and Quality in Use Metrics, each gives different aspects of software quality assessment. It has six main characteristics: functionality, reliability, usability, efficiency, maintainability, and portability. It provides a structured approach for developers and evaluators to measure and improve software quality....

Frequently Asked Questions

1. What is ISO 9126 used for?...