2. Leonard asks you if you know any process model that complies with the human centered design methodology. Name and explain briefly the design process model popularized by the British Design Council, the phases and the activities involved, and the focus of the phases. (20 points) With your help, Leonard did such a good job that he decided to give up his career in physics and pursue design. Talking with his friends about the difficulties they face when identifying differential equations, they decided to create a differential equation scanner app. Since this was an application for smartphones, Leonard did a bit of research about designing mobile applications and came across the term "thumb zone", which Hoober defines as "the most comfortable area for touch with one-handed use." Trying to make their app thumb-friendly, he set up a personalization system that collects user data and sorts the bottom menu bar (or UI Buttons as he calls them) based on the most frequently used options on the menu. For example, assume the original order of buttons on the screen are "Scan", "Upload", "Copy", "More". After Leonard's friend, Howard, uses the app several times, the app collects Howard's data and identifies that "Upload" and "Copy" are used more than the rest of the options. Therefore, the app changes the order of the buttons accordingly, putting "Upload" and "Copy" where it is easier to reach by thumb