A benchmark is a point of reference by which something can be measured. For example, in a web site usability evaluation, a benchmark can be the measurement of a participant's performance on a set of pre-determined tasks, such as time to complete task. A BCT is the time established as the time within which the participants should be able to complete a particular task. Browsing The process of users following paths through a site which result in the retrieval of specific content.
Card sorting Card sorting is one of the simplest yet most effective usability methods.
Best used in the early stages of information architecture design, card sorting is a categorisation method where users sort cards depicting various pieces of information into categories. The results can then be leveraged to build a more intuitive navigational hierarchy. Cognitive walkthrough Cognitive walkthrough is an evaluation method, similar to a heuristic evaluation, whereby an expert evaluates the usability of a design. The evaluator constructs task scenarios from a specification, and then role-plays the part of a user. Potential problems are evaluated against psychological criteria.