Zhengyi CaoNov 2, 20197 minFour 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, 20195 minWhy 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, 201921 minSeveral Principles in Voice-User Interface DesignAn overlook of Voice User Interfaces (VUIs) and several principles in the design of VUIs. Use these principles cleverly.