You might be familiar with oscilloscopes, the devices used for measuring electrical signals? You have probably used one in a doctor’s office visit. They are used every day by scientists since they appeared more than sixty years ago. Despite having undergone functional changes and performance, they have changed very little in terms of how they are used and are still seen by users as complex to learn and use.

Problem to solve

The project leader has the challenge of revolutionizing the use of these machines by creating a tablet-format oscilloscope. This will make it much more attractive and easy to carry. The challenge lies in the use. Our client, electronics training , noted that 80% of users use only 20% of the features and wishes to create a more refined product. Our goal is to meet three specific populations (engineers , students, researchers ) by providing ease of use in their daily actions.


We created an intuitive interface, using what is called in the UX Design “mapping” to ensure the design of interfaces that respond to human logic.

How we did it

We conducted interviews and observations with the three targets of our client (engineers, students, researchers). Once the data was collected, we constructed personas sheets to describe the target and its specificities compared to others. Indeed, the three targets will not have the same frequency of use of the device and are not measured the same way. Their level of expertise must be considered as well. Next came formalizing the mental model of users after which we designed interfaces and interactions that meet these mental models . Finally, we performed user testing based on prototypes in order to identify and correct design errors before providing developers specifications for coding.


The electronics experts never use the “Auto Set” mode, they regulate themselves the channels for measurement. Students, on the contrary, systematically use this mode before any measurement. We must find a strategic location on the interface that allows students to quickly turn is initiated and experts to ignore it, without this hindrance in their viewing.


Startup / User interface Design (UI) / User Research