Since Credit Card is a service widely used, it's important to take into consideration that some experience standards are already intuitive for the users. Having that in mind, I made a lot of benchmarks and qualitative researches to better understand what in the existent credit cards experiences was well evaluated by their customers and could help us structure our own experiences and what we needed to do differently in order to innovate and highlight our product over the other financial companies'.

Before the first official launch, the team didn't have much quantitative data to analyze or use as reference to guide our experiences, so we decided to make a testing release with a restricted group and monitor its behavior data to refine our experiences while doing some qualitative tests with future prospects, but paying attention to the biases of these numbers, since the users at that time were only premium clients and XP employees.

To create all these solutions as fast as possible, I used SOMA, our company's design system, that helped me to gain agility when creating the user interface experiences while the design system itself was still being refined.

After designing the experience of all the features, I ran a usability test for each of them, in some cases using interview techniques, in others, using forms and Maze to help us to have more scalability on the data we wanted to get. In a specific feature, I also used the research diary methodology to better understand the impacts of our communication with the user during that time and how we could improve our interaction with them.

The main methodologies utilized were:

• Qualitative tests and interviews.
• User behavior and quantitative data analysis.
• Flowcharts and interface design experience.
• Design System.
• Usability testing.
• Accessibility specifications and testing