“Usability testing” is needed to ensure that our products have a positive impact on our users, but it needs to be conducted correctly. There are a number of protocols that can be used, the most common being the think aloud protocol. However, this protocol is not suitable for all phases of the product design process. Other protocols may be more appropriate depending on what you hope to learn. We may want to assess different aspects of a product that make up the user experience – brand and marketing, visual design preferences, content understanding, and interaction design. In this short tutorial, you will learn about three specific protocols and learn the capabilities and limitations of each one (the when and why they should be used). We will also discuss the procedures of implementing each of the protocols (the how).