The model of happyability

These terms “functionality”, “usability” and “pleasurability” are being studied for many years. There are many standards or scales to evaluate, but there are fewer to discuss how to assess pleasurability. What´s pleasurability? People are aware of the importance of living quality both materially and spiritually, `Happiness´ also rises as a goal that people are pursuing nowadays. Therefore, the research focus of HCI has gradually shifted from usability to a more human-centered focus which involves pleasurability of emotion feedback. It´s also called emotional design. User´s needs usually increase from functionality, usability to pleasurability. To distinguish the variables of pros and cons of human-computer interaction(HCI), it involves different levels of inter-discussion. According to some literatures, `pleasurability´ is part of `happiness´, therefore, this paper concludes happyability is a collection of people´s positive emotion which is provided by products, including four categories: satisfaction, emotion, engagement and social connection. The developing model of happyability will provide reference for HCI design.