Three to five testers using system, explaining their decisions out loud. Observer records observations without offering help. Testers should be representative of target audience. Identify trends in user behaviour during use of system to spot problems. System can be prototype or existing system, either way it needs to be operational.
Ten Usability Heuristics
Web Usability: Usability Inspections Ten Usability Heuristics Ten general principles for user interface design – more rules of thumb than specific usability guidelines, hence “heuristic”. Visibility of system status – the system should always keep users informed about what is going on, through appropriate feedback within reasonable time. Match between system Continue Reading
Heuristic evaluation
Web Usability: Usability Inspections Heuristic evaluation A heuristic technique (/hjᵿˈrɪstᵻk/; Ancient Greek: εὑρίσκω, “find” or “discover”), often called simply a heuristic, is any approach to problem solving, learning, or discovery that employs a practical method not guaranteed to be optimal or perfect, but sufficient for the immediate goals. (Wikipedia, 2017) Continue Reading