This is the design of a door handle. Critique this design whether it is good or bad in terms of what we learned. For example, does it have a good affordance? Will the novice users know how to open and close the door with this door handle? What are the constraints?
The following images show the interface of DatePlus Application on iOS. Research more on this application and answer the following questions:
3.1 Describe how DatePlus interface is an example of direct manipulation interface.
3.2 What is/are the underlying metaphor(s) of DatePlus interface? What do you think about the metaphor(s)? Good or bad? Any suggestions to improve? Discuss.