DFD for E-Commerce Website

DFD Context Level

The System is recognized as a complete system “Fruit Bazaar System. Admin, Users, Shipping
Agent are the main actors for this system.

DFD Level 1

User can Log-in, add, remove items to cart, register, pay. Admin can have priviledged login
,they can change, modify catalog, maintain user data. After adding items to cart they can make
order .The orders are stored in order database. The orders are processed and items from the
warehouse are delivered to customer by shipping agent.

DFD LEVEL 2

Cart

Customer/User can browse the catalog and can add items to their cart for ordering. Moreover
Customer can remove items from their cart. and after adding items to their cart they can checkout
and move to Ordering. For Order a customer need to be log-in.

Admin can maintain the Catalog. The Catalog contains all items the are in stock with their rates.
Admin can also change the catalog information like Dynamic rates according to market value.
He can add remove items from catalog and stocks.

Profile Handling

User can manage their profile. Profile handling includes changing their account information like
email, shipping address, passwords. If the user has created a invalid account then Admin can
remove the account or can intimate User about any fault in their profile.

Physical Transaction

At the time of delivery A shipping Agent which will take the items from warehouse along with
the bill and deliver the item to customer. Customer will pay the respective bill and the bill will
be stored in transaction database .For keeping record of cash transaction we have a transaction
database which will store bill amount and bill id.

LOGIN

User enter their login-id along with password. If the entered data is valid combination then home
page will be displayed otherwise a message intimating user about their in-appropriate login
details..

Intimation

After placing Order Customer will be intimated by a order confirmation mail and sending a Sms
containing order details and delivery time.Profile database will be used to get email-id and
mobile number of customer.

DFD for E-Commerce Website

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