During the literature survey it was found that most of existing similar systems are only concern in basic functionalities.
They do not provide any details regarding available items where shoppers can check at home.
Also promotions and discounts details are given through augmented reality which has many disadvantages as they use
image processing to identify shops.
So they are not accurate enough to use inside a shopping mall.
Loyalty card management facility is not provided by any available system and further discounts/ promotions are not related with loyalty points in the existing system.