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  2. System usability scale - Wikipedia

    en.wikipedia.org/wiki/System_usability_scale

    In systems engineering, the system usability scale (SUS) is a simple, ten-item attitude Likert scale giving a global view of subjective assessments of usability.It was developed by John Brooke [1] at Digital Equipment Corporation in the UK in 1986 as a tool to be used in usability engineering of electronic office systems.

  3. Questionnaire for User Interaction Satisfaction - Wikipedia

    en.wikipedia.org/wiki/Questionnaire_for_User...

    The QUIS is currently at Version 7.0 with demographic questionnaire, a measure of overall system satisfaction along 6 scales, and measures of 9 specific interface factors. These 9 factors are: screen factors, terminology and system feedback, learning factors, system capabilities, technical manuals, on-line tutorials, multimedia ...

  4. ISO 9241 - Wikipedia

    en.wikipedia.org/wiki/ISO_9241

    The questionnaire is a seven-point Likert scale in which scale 1 indicates the task as ‘very difficult’, and scale 7 indicates the task as ‘very easy’. [ 12 ] System Satisfaction is used to evaluate the overall usability of the apps through System Usability Scale (SUS), which is a usability assessment questionnaire with reliable and ...

  5. ISO/IEC 9126 - Wikipedia

    en.wikipedia.org/wiki/ISO/IEC_9126

    Metrics (to control): They are defined and used to provide a scale and method for measurement. ISO/IEC 9126 distinguishes between a defect and a nonconformity, a defect being "The nonfulfilment of intended usage requirements", whereas a nonconformity is "The nonfulfilment of specified requirements". A similar distinction is made between ...

  6. Component-based usability testing - Wikipedia

    en.wikipedia.org/wiki/Component-based_usability...

    The average rating on these six statements is regarded as the user's usability rating of the interaction component. Based on lab studies with difficult to use interaction components and easy to use interaction components, a break-even point of 5.29 on seven-point Likert scale has been determined. [4]

  7. Universal usability - Wikipedia

    en.wikipedia.org/wiki/Universal_usability

    Hence, electronic curb-cuts – system functions that are designed for people with disabilities – may be usable by everyone in various usage situations. It might be expensive to transform an existing system to meet universal usability standards, but the extra cost of integrating electronic curb-cuts into a new system can be minimalized.

  8. Usability goals - Wikipedia

    en.wikipedia.org/wiki/Usability_goals

    Usability goals must be included in every product design process that intends to follow a Human Factors approach (for instance, User-centered design [1] process or Usability Engineering Lifecycle [5] [full citation needed]). They have to be clearly stated from the onset of the process, as soon as the end-users needs, risk of use, contexts and ...

  9. Usability engineering - Wikipedia

    en.wikipedia.org/wiki/Usability_engineering

    Usability engineers sometimes work to shape an interface such that it adheres to accepted operational definitions of user requirements documentation.For example, the International Organization for Standardization approved definitions (see e.g., ISO 9241 part 11) usability are held by some to be a context, efficiency, and satisfaction with which specific users should be able to perform tasks.