** Due: 11:59 pm, September 23 (Tuesday).

** Requirements: posted below.

** Due: 11:59 pm, October 7.

** Task: Revise the draft according to the professor's feedback.

*2.0 Design and Implementation of Essential Features. [STARTED]

** Design Requirements: posted below.

** Submission Requirements: You must submit a design report that has design diagrams (e.g. mock-ups, system diagrams, information flow diagrams) and a list of essential features. In the report, you should also mention briefly the design principles that you have used. The cover page of the report should include your name(s) and the name of your Android application. No late submission will be accepted.