Final design of "Gifter"

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Design Rationale

1. Mental Model

The first principle implemented in our application is a mental model, which is introduced by Don Norman. Don Norman claimed different person might have a different understanding of how things work, and hold different mental models in the same thing(Don Norman, p26). WHY? A mental model is the most significant principle in our project, due to the fact that it explores the different personalities of users and creates the profiles related to them. Understanding the mental model of the user is crucial to increasing the accuracy of the algorithm for generating gifts the user preferred. Therefore, this principle could help to solve the paradox mentioned before.

HOW? For implementing mental models of users, we settled two questions with two options respectively. The four options represent four types of personalities. The results appear to be 4 groups of combinations to classify the personality of users. The notion of personality type was introduced by Carl G. Jung, who is a famous psychologist. Jung claimed that personality could be characterized by two dimensions, with two opposites. (​Sensing vs. Intuition​) (​Thinking vs. Feeling​) (human metrics, “how-to-determine-other-peoples-type”)

The two testing questions were designed to determine the two dimensions. In the first question, we designed a situation in which the user wants to send a gift to a friend. The friend has a habit of ​music​ for a long time, in the meanwhile he is recently


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Final design of "Gifter" by Shican Wu - Issuu