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Usability Testing

Usability testing of the software product (program) helps dedicated tester to identify and evaluate whether the product is clear for users, user-friendly and attractive.

Usability is the ease with which users cooperate with the program (system). Quite often, at the early development stage, testers design a mockup of the website or a program. The mockup is used for the demonstration, training and design, and due to it, testers can verify part of the functionality and get feedback from users about the product.

Mockup usage when developing software and when designing the user-interface shows the end-user how the software will look like. There is no need to create a complete software with full functionality. At this initial stage of development, defects are fixed in the design.

In General, this testing type is subjective, but test results are significant from a business perspective. Use techniques such as surveys and questionnaires. There are standardized and general testing methodology as SUMI and WAMMI.


SUMI (Software Usability Measurement Inventory) – list/questionnaire to assess the software usability. This technique is used to test the practicality of using the program and is based on the methodology of the survey. The consistent approach to the methodology for assessing the quality of the program use helps to identify deficiencies in the usability before sending the product to the customer.

Respectively identified deficiencies are corrected and verified before final release. SUMI consists of 50 allegations, which the user must respond that s/he “agree”, “don’t know” or “disagree”.


WAMMI (Website Analysis and MeasureMent Inventory) – list/questionnaire for performing website testing service and taking measurements. The given methodology is used to evaluate website from the users’ point of view. Each of the 20 claims is estimated by one such available shade:

  • Very agree.
  • Agree.
  • Neutral answer.
  • Disagree.
  • Very disagree.

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