I am browsing shirts at my favorite store and want to know how much a shirt cost on ebay.com With this app on my phone, I can just scan the shirt or enter the barcode number, the app will tell me the current lowest price of the shirt at eBay. I can also search for shirts on a particular type.

Given the user story above, analyze the user story carefully to derive the requirements for the ShirtAtEbay app from the following aspects (you MUST provide all of your working evidences in form of texts, tables and diagrams and you MUST produce drawings using UMLET):

1. Functional perspectives: (i) A user access function table. (ii) A use case diagram based on 1(i).