informatics

Problem definition:

 The main problem is that the check out raw is too long and it take a lot of time to reach the cashier. Some supermarkets tried to solve this problem by increasing the number of cashiers but if you think about it you will find that a huge amount of money is paid from salaries and human mistakes. Other supermarkets don’t have enough space to increase the number of cashiers. Both supermarkets still complain about the long raw problem.  

Scope:

 The solution of this problem should deal with customer’s operations and the systems should be affected by these operations. The cart will be an interface between the customer and the system. The cart should require some services which represent a customer operation and the system should know some information about the cart.

Description of the solutions: 

Solution (1):

 Every cart in the supermarket will have a small computer that has some features:

·        Calculate the total cost of purchased items

·        Show a list of purchased items

·        Add new purchased item

·        Remove a purchased item (it may cause some problems but we will find a solution)

·        Show offers

·        Search for an item

·        Connect to the system at the cashier

  Solution (2):

 A site that represents a virtual supermarket that is exactly the same as a real one so that a customer hasn’t to go to the supermarket to buy his needs. I think it is an advanced way of e-commerce.