Usability iso def

More information about ISO. ISO is just one of many standards that apply to usability and ergonomics. Other relevant ISO usability standards:. This list is far from exhaustive. Just as each of the parts of ISO need to be seen in the context of the whole standard, ISO needs to be seen in the context of national and International standardisation efforts.

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Download the ISO eBook. Join our community of UX professionals who get their user experience training from Userfocus. See our curriculum. The modern industrial use of the term started in the late s. Related terms from that time were user friendliness and ease of use , both of which usability has since displaced in professional and technical writing on the topic.

There are two major conceptions of usability : measurement-based goals summative evaluation versus detection and elimination of problems formative or diagnostic evaluations. Where did the defining begin? Starting in the early s, the goal of the European MUSiC project was to develop specific usability measurement methods for the high-level constructs of effectiveness , efficiency , and satisfaction.

Attempts to measure these constructs did not start with MUSiC. Systematic collection of task completion rates , task completion times , and sometimes satisfaction had been common in industrial usability testing since the early s.

IBM conducted an internal competitive usability testing project named SUMS System Usability MetricS in the late s that collected usability benchmarks of success rates, completion times, and satisfaction for three office software suites, with the SUMS data used to develop one of the first standardized usability questionnaires, the PSSUQ.

The MUSiC project was, however, one of the first, if not the first, comprehensive public investigations into the systematic collection of what we now think of as prototypical usability metrics.

This empirical work was conducted to support the development of ISO , which had its first draft in One of the early work efforts in the MUSiC project Rengger, was the production of a list of potential usability measurements. The list was based on 87 papers that had described some quantification of usability, with the measures categorized into four classes:.

These objective usability metrics are familiar to most modern usability and UX practitioners, but note the absence of any subjective metrics. Using this as a starting point, the MUSiC usability measures proposed in included. From these fundamental measures, additional measures were derived, such as learnability changes in usability over time, or comparisons of experienced and inexperienced users and breakdowns of task time into productive and unproductive periods.

The measures of overall usability continued to be effectiveness, efficiency, and satisfaction, with the following examples:. The standard also included a list of modifications of these key measures for special situations, including:. ISO provides a framework for understanding the concept of usability and applying it to situations where people use interactive systems, and other types of systems including built environments , and products including industrial and consumer products and services including technical and personal services.

NOTE In this document, the phrase "object of interest" refers to the system, product or service for which usability is being considered see 8. ISO does not describe specific processes or methods for taking account of usability in design development or evaluation.

Check out our FAQs. Buy this standard. Abstract Preview ISO provides a framework for understanding the concept of usability and applying it to situations where people use interactive systems, and other types of systems including built environments , and products including industrial and consumer products and services including technical and personal services.

ISO - explains that usability is an outcome of use; - defines key terms and concepts; - identifies the fundamentals of usability; and - explains the application of the concept of usability.