STOCK MAINTANENCE SYSTEM
MODULE 1: (user entry for log-in)
Log-in is required in order to purchase products from the store.
The old customer enters the seller’s site by entering the username and password.
If the password or username is invalid ,then an error message is displayed.
If a new customer wants to purchase products then he needs to sign up to enter his details.
MODULE 2: (selection)
After signing in the customer can select particular product and a detailed description of it is displayed.
The customer can also select the option compare to see the features of different available products.
After analyzing the various features ,the best of all the products is chosen.
MODULE 3: (transaction)
The customer in order to buy the product uses his credit card by entering the necessary details.
MODULE 4: (delivery)
Once the customer enters the necessary details and when the SUBMIT button is clicked, the acknowledgement is sent and the selected product is delivered
USE CASE DIAGRAM