Six User-Centric Design Methods

Focus Groups

Low cost, non-statistical output, low sample size; Used during the Requirements gathering stage.

Usability Testing

High cost, statistical & non-statistical low sample size; Used during design & evaluation.

Card Sorting

High cost, statistical, high sample size; Used during design.

Participatory Design

Low cost, non-statistical, low sample size; Used during design.

Questionnaires

Low cost, statistical, high sample size; Used during requirements gathering & evaluation.

Interviews

High cost, non-statistical, low sample size; Used during requirements gathering & evaluation.