Project phase

The choice of research methods often depends on which part of the product design phase you're in. Is it a new product, or does it already exist on the market? Some methods, like surveys, can be used at any stage, while others, like usability tests, can only be run once you have a prototype.

Here are some general guidelines:

• At the beginning of the process: You'll want to learn user needs and their motivations. This is the time to generate ideas and answers about which way to go. Field studies, diary studies, interviews, surveys, participatory design, and concept testing are suitable methods for this stage.
• Once the design stage begins: The focus shifts to improving the design. Methods you can use include card sorting, tree testing, usability testing, and moderated or unmoderated remote testing.
• After the release: The goal is to leverage existing users to assess the product against its earlier versions or competitors. Some methods you can use here are usability benchmarking, unmoderated UX testing, A/B testing, analytics, and surveys.^[1]