Usability Evaluation

Principles

Usability is defined by the ISO 9241 standard as "The extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency, and satisfaction in a specified context of use". Its main evaluation criteria are:

  • Efficiency
  • Learnability,
  • User Satisfaction ,
  • Appropriation easiness,
  • Utilization easiness,
  • Reliability.

Interests

Usability studies of a product/service aim at assessing its use value. These studies can focus on functionality perception, user appropriation, satisfaction with respect to need analyses, etc. in order to find relevant design criteria. These criteria are based on qualitative or quantitative data and are used to evaluated the performance of the product/service with respect to the competitors

Studies

  • Panels of future users or target populations
  • Build-up of evaluation methods and tools
  • Tests with user panel in laboratory conditions, semi-ecologic conditions (tracks), or ecologic conditions
  • Surveys, user feedback analysis
  • Protocol and experimental setting-up based on scientific and advanced expertise
  • Coupling acceptability and usability analyses for a fast development of performant innovative solutions
  • Specification redaction integrating usability criteria

Example

  • Setting-up a protocol to evaluate the subjective performance of a range of bicycles according to its architecture and the user perception
  • Comparing the usability of various smartphone applications which calculate multimodal trip

Comparaison d'interfaces Clio V410 Dacia

Created 09 Jul 2015 by NOUHAUD Alix .


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