Expected Elements of User Interface
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Once the app starts, anyone using the app should see:
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1.Login button/menu item
	[Functionality: must allow a registered user to login]
2.Logout buttom/menu item
	[Must allow a logged in user to logout]
3.Register user (shopper/admin) button/menu item
	[Must allow anyone to register as a shooper or admin]
4.Products must be shown/listed visually: 
	[For each product must show an image, description, price, quantity available
	[Functionality: product must be available for sale on a click to logged in shoppers only]
	
Shopper users (logged in!) must have the following functions available:
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5.Add a product to shopping cart
6.Remove product from shopping cart
7.Modify quantity of a product in the shopping cart
8.List shopping cart (see what is in it)
9.Check out shopping cart
10.See a list of historical purchases (orders and/or invoices)

Admin users (logged in!) must have the following functions available:
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11.Add a product category
12.Add a product 
13.Add a list of cities served by the app and distances between cities
[Example: Ability to ship to cities A,B,C,D and dist(A,B)=100,
dist(B,C)=200, dist(A,D)=110; the graph must be connected]
14.Add a warehouse/distribution centre (must be located in an existing city)
[Example: A,D]
Note: no visual representation of the graph is expected.
15.Produce a sales report

Software Release Demo Marking Scheme
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Clarity of the presentation (max 2 marks):
	0=No presentation 
	1=No co clear
	2=Clear and concise
	
User Friendliness (max 3 marks):
	0=No user interface
	1=It is nearly impossible to locate the main functions
	2=Functions can be located with some help
	3=Functions are clearly available to the user
	
Implementation of the expected elements (max 5 marks)
(evaluated by the visual presence of the tabs/menu items):
    0=No function was implemented
	1=At least 3 functions were implemented
	2=At least 6 functiones were implmeneted
	3=At least 9 functions were implemeneted
	4=At least 12 functions were implemented
	5=15 or more functions were implmeneted
	
Functionality (max 10 marks)
The TA will pick 5 of the above functions and evaluate them as follows:
0=Function does not work
1=Works with some errors
2=Works as expected