To assess how convenient is an interface for a person, we use different tools and test the products we make. The results of usability testing lead to better and more delightful user experience with is our overall aim.
WE EXPLORE USERS’ ASPIRATIONS
TO MAKE THEM FALL IN LOVE WITH A PRODUCT
We use 4 main usability testing methods:
First Use Test
We invite up to 8 participants from target audience to our office and observe them using the prototypes. Participants are asked to perform the list of scripted tasks (scenarios) and think aloud while doing that. On purpose, we don’t reveal how the product should be used and encourage to create their own pathways.
First Use testing helps us to reveal some significant problems:
- If user has the sense of what he / she can accomplish
- Is he/she engaged with the interface
- If he/she can easily find useful information.
After the draft version of website or app is released our usability consultant checks if it has any errors/inconveniences in usability elements: accessibility, navigation, search, links (URLs), layouts, forms, credibility, page refresh time.
We conduct in-person interviews with target users after they've experienced the given interface, and also we simply talk to them and observe to understand them better. People's preferences are unstable as they are influenced by current circumstances and emotions while interviews give us the deeper view on our user.
A/B interface testing
During the test we show 2 slightly different versions of interface to the same user. For example, change layouts, placing buttons differently or give more functions in one interface. The interface with higher conversion rate wins!
GOMS model testing
Now this is a very similar to A/B testing method, also quantitative, but here we compare the time user spends to achieve it’s aim. For example, we provide 2 interfaces with identical visual design, but with slightly different functionality. Then we compare how much time our user will spend to accomplish the same task. The more speedy interface wins.