User testing is a key method of human-centered design. It allows you to evaluate a product or interface by observing how future users use it.
By analyzing their reactions, difficulties and behaviors, the designer can identify the strong points and areas for improvement in the course.
This concrete feedback allows you to adjust the design before development. There are several types of tests, each serving a specific purpose depending on the progress of the project and the questions the team wants to explore. Let me introduce you to the six most commonly used tests.
1. Quantitative tests
Also called tests unmoderated, quantitative testing aims to objectively measure the effectiveness, satisfaction and performance of a product with a large panel users.
These tests can be sent and distributed to a large number of users via online tools like Maze, Hotjar, PingPong, User Testing, Lookback, etc.
The collected data is then analyzed to guide design decisions.
2. Qualitative tests
Qualitative tests, called “moderated tests”, explore motivations and perceptions in depth. They aim to understand in depth action needs, motivations and behaviors users facing a product or prototype.
Unlike quantitative tests, they do not seek to measure or generalize, but to explorer the “why” behind the actions users. The process begins with selecting a restricted panel closest representative of target users, then the rcarrying out tests in real situations.
During these sessions, most often in person, the designer collects rich and contextual feedback on friction points, expectations and the emotions caused by the product.
3. A/B testing
The goal of A/B testing is to can compare two versions of the same site (an interface, a button, a page, etc.) in order to determine which offers the best performance according to a specific indicator — for example, click rate, conversion or retention.
Users are randomly assigned between version A (the original) and version B (the variant), their behaviors are measured in real time.
The goal is to determine which version users liked the most and which allows to confirm or refute a hypothesis in real conditions.
4. Guerilla Testing
The main objective of this test is to obtain quick returns et spontaneous target users by having them test a prototype for a few minutes.
Guerrilla Testing is usually done during the prototype or ideation phase, it is efficient and can help highlight clear improvement rates.
The process consists of present un scenario simple observer reactions and ask some open questions to gather spontaneous impressions.
The analysis focuses on the points of immediate friction, understanding of the of the interface and the first impressions, rather than on detailed measures or statistics.
Guerrilla testing is particularly useful for validating quickly ideas, detect obvious problems and iterate early in the design process, while minimizing the time and costs associated with more formal testing methods.
5. Card sorting
Generally carried out during the design phase, card sorting consists of asking users to to classify ou gather information elements in order to define a hierarchy according to their logic.
This test is fundamental to design a navigation ergonomic et Options.
It can be done using tools like Maze or Miro, which offer ready-to-use templates. It can also be done in person as a workshop using post-it notes.
6. The 5-second test
Often overlooked, the 5-second test allows you to measure visual impact from the moment you first impression of a user facing an interface or a page. It is therefore used very early in the process to ensure that the essential is perceived from the first moments.
The principle is simple: we show a model or a screen for 5 seconds, then we ask the user what he has retained, including ou feeling.
This test is ideal for assessing the clarity of message, visual hierarchy and the overall impact of a design.
Conclusion
User testing is a essential pillar Product Design, working hand in hand with users, allows you to design products that are truly aligned with their needs and their expectations.
By combining these approaches throughout the design process, we put all the chances on our side to align the user choice et, lower their uncertainties.
To learn more about user testing, I invite you to come and find out mistakes to avoid during your tests!
Julie Bouvier, Product designer at UX-Republic
