O’z DSt ISO/IEC TR 9126-4:2014 PDF

Full title and description

O’z DSt ISO/IEC TR 9126-4:2014 — Programming. Product quality. Part 4: Quality in use metrics. This document is the national (O’z DSt) adoption of the ISO/IEC TR 9126-4 technical report, providing a recommended set of quality-in-use measures to assess how software products affect users in their actual contexts of use.

Abstract

This technical report defines measures and measurement methods for the quality‑in‑use characteristics (for example effectiveness, productivity, safety and satisfaction) described in the ISO/IEC 9126 product‑quality model and offers guidance and examples for applying those measures through the product life cycle. It is intended as a selectable set of metrics for developers, evaluators, acquirers and quality managers rather than an exhaustive prescription.

General information

• Status: National adoption (O’z DSt) — listed as available/active in Uzbek standards catalogs; note that the original ISO/IEC TR 9126-4 (2004) was later withdrawn internationally and replaced by ISO/IEC 25022:2016.
• Publication date: 2014 (O’z DSt adoption); original ISO/IEC TR publication: April 2004.
• Publisher: Uzstandard (Uzbek Agency for Standardization / Agency for Technical Regulation — national standards body) / O’z DSt series.
• ICS / categories: 35.080 (Software engineering; information technology — software quality / metrics).
• Edition / version: O’z DSt ISO/IEC TR 9126-4:2014 (identical adoption of the referenced ISO/IEC TR text).
• Number of pages: Approximately 59 pages (matches the original ISO/IEC TR 9126-4:2004 length; national published copy may vary slightly depending on formatting/translation).

Sources: Uzbek standards catalog listings and the ISO bibliographic record for ISO/IEC TR 9126-4 (original), including the later replacement standard ISO/IEC 25022:2016.

Scope

The scope covers quality‑in‑use measures and methods to quantify the effects of software when used in a specified context. It provides a basic set of candidate measures for the quality‑in‑use characteristics, guidance on applying these measures during the software life cycle, and informative annexes with evaluation processes and reporting formats. The national O’z DSt text presents these measures for use by organizations in Uzbekistan as an adoption of the ISO technical report.

Key topics and requirements

• Definition of quality‑in‑use characteristics (effectiveness, efficiency/productivity, safety, satisfaction, and related subcharacteristics).
• Proposed measures and metrics for each quality‑in‑use characteristic.
• Measurement methods, data collection techniques and examples of calculation/normalization.
• Guidance on selecting metrics appropriate to context of use and stakeholders’ needs.
• Informative annexes showing evaluation process steps and recommended reporting formats.
• Advisory (non‑mandatory) nature — metrics are suggested rather than prescriptive; selection depends on context and objectives.

(Key content summarized from the adopted TR and the original ISO/IEC TR 9126‑4 description.)

Typical use and users

Typical users include software developers, test and quality engineers, evaluators, acquirers/procurement teams, and product managers. The document is used to specify measurable quality requirements, design measurement programs, evaluate software at acceptance and in operation, and to support quality assurance and improvement activities. It is applicable where objective, repeatable measures of user‑perceived quality are required.

Related standards

Related and connected standards include other parts of the ISO/IEC 9126 family (9126‑1, 9126‑2, 9126‑3) and the SQuaRE series that superseded 9126 (notably ISO/IEC 25010 — quality model — and ISO/IEC 25022:2016 — measurement of quality in use). National O’z DSt adoptions of related ISO/IEC IT standards are commonly published alongside this document in Uzbekistan’s standards catalogs.

Keywords

quality in use, software quality, metrics, measurement, usability, effectiveness, productivity, satisfaction, ISO/IEC 9126, ISO/IEC 25022, O’z DSt, Uzstandard, SQuaRE.

FAQ

Q: What is this standard?

A: It is the O’z DSt (Uzbek national) adoption of ISO/IEC TR 9126-4, a technical report that provides candidate measures and guidance for assessing software quality in actual use (quality in use metrics).

Q: What does it cover?

A: It covers definitions of quality‑in‑use characteristics, a basic set of measures and measurement methods, examples of application through the software life cycle, and informative annexes for evaluation and reporting. The measures are intended as selectable options tailored to context rather than mandatory thresholds.

Q: Who typically uses it?

A: Developers, quality/verification teams, evaluators, product owners, acquirers and maintainers use it to specify, measure and evaluate how software affects users in real contexts (for acceptance testing, procurement, quality assurance and improvement).

Q: Is it current or superseded?

A: Internationally, the original ISO/IEC TR 9126‑4:2004 has been withdrawn and its role superseded by ISO/IEC 25022:2016 (part of the SQuaRE family). However, the O’z DSt ISO/IEC TR 9126‑4:2014 represents a national adoption published in 2014 and is listed in Uzbek standards catalogs as the national text; organizations should check the current national catalog or Uzstandard for the local legal/status details and consider ISO/IEC 25022:2016 if they require the latest international model.

Q: Is it part of a series?

A: Yes — it is part of the ISO/IEC 9126 family (parts 1–4) and functionally replaced in the later SQuaRE series (ISO/IEC 25010, 25022, etc.). National O’z DSt editions of other related ISO/IEC IT standards are commonly published alongside it.

Q: What are the key keywords?

A: Quality in use, metrics, measurement, usability, effectiveness, satisfaction, productivity, SQuaRE, software product quality, O’z DSt, Uzstandard.