There are many ways to get feedback from users during the design process. These include usability testing, cognitive walkthroughs, group walkthroughs, on-site observations, and heuristic walkthroughs.

Based on cognitive psychology features, heuristic coordinator and maintenance coordinator were proposed for the first time to improve the ability of self-cognition of KDD.

Cognitive walk-throughs and heuristic evaluations are low-cost ways to see how the parts of your Web site fit together from the user's perspective and will give you a sense of how things flow.