Zhengyi CaoNov 2, 2019Four Must-Have Types of Information in a Product Page A good product page provide 4 types of differentiating information and they serve for 4 purpose: Cognition, Trust, Value and Action.
Zhengyi CaoOct 31, 2019Why iPhone Has Two Ways to Answer a Call? There are two different screens of an incoming call on iPhone and they are displayed under different situation. Why does Apple design this?
Zhengyi CaoSep 16, 2019Several Principles in Voice-User Interface DesignAn overlook of Voice User Interfaces (VUIs) and several principles in the design of VUIs. Use these principles cleverly.
