Auction are the buying and selling of goods and services on the Internet. It is available 24 hours a day, and many consumers have Internet access both at work and at home. Stores describe products for sale with text, photos, and multimedia files. Each member has only one store and is able to show/hide it.
a. Guest
Guest is non-registered user. They are able to view/search stores/products, add products to cart and get help.
b. Member
Member is registered user. They inherit functions from Guest and are able to rate/comment/like/share stores/products, follow auction and manage following auction
c. Seller
Seller inherits function from Member and is able to manage his store.
d. Buyer
Buyer inherits function from Member and is able to manage his orders.
e. Admin
Admin inherits function from other users and manage back-end.