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A heuristic evaluation is a usability inspection method for computer software that helps to identify usability problems in the user interface design. It specifically involves evaluators examining the interface and judging its compliance with recognized usability principles (the " heuristics ").
Nielsen founded the usability engineering movement for efficient and affordable improvements of user interfaces and he has invented several usability methods, including heuristic evaluation. He holds more than a thousand United States patents, [11] [12] mainly on ways of improving usability for technology.
A heuristic evaluation or usability audit is an evaluation of an interface by one or more human factors experts. Evaluators measure the usability, efficiency, and effectiveness of the interface based on usability principles, such as the 10 usability heuristics originally defined by Jakob Nielsen in 1994. [8]
Heuristic evaluation is a usability engineering method for finding and assessing usability problems in a user interface design as part of an iterative design process. It involves having a small set of evaluators examining the interface and using recognized usability principles (the "heuristics").
Usability testing methods aim to evaluate the ease of use of a software product by its users. As existing methods are subjective and open to interpretation, scholars have been studying the efficacy of each method [1] [2] [3] and their adequacy to different subjects, comparing which one may be the most appropriate in fields like e-learning, [4] e-commerce, [5] or mobile applications.
Jakob Nielsen's heuristics are widely adopted in interface design. It provides expert reviewers with a set of principles to discover usability problems and then categorize and rate them in a quick way. This set of heuristics includes visibility of system status, match between system and the real world and so on.
Parts 3 to 9 deal with physical characteristics of computer equipment. Part 110 and parts 11 to 19 deal with usability aspects of software, including Part 110 (a general set of usability heuristics for the design of different types of dialogue) and Part 11 (general guidance on the specification and measurement of usability).
Usability inspection methods are generally considered to be less costly to implement than testing on users. [1] Usability inspection methods include: Cognitive walkthrough (task-specific) Pluralistic walkthrough; Heuristic evaluation (general), or (domain or culture-specific) [2] Action Analysis; Guideline scoring or testing [3]