Data Flow Diagram

  • December 2019
  • PDF

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  • Words: 275
  • Pages: 2
Enters - personal details, password and email address in new user form.

Customer details

Register new user

Customer

D1

Customer Table

Confirmation email – with login details Customer details and user ID and password Enters user name (email) and password in log in form

Customer Details declined – user is prompted to re-enter correctly and given an option to be emailed user details and password.

Identify and authenticate existing user

D3

Past Orders

D4

Items Bought

Order History

Favourite list / similar items

Details accepted – welcome screen of account is displayed (See far right of page)

Items stored in a temporary basket until confirmed by user

Browses products

Customer User adds desired item (s) to basket

Identify and authenticate existing user

T1

Temporary Basket

T1

Temporary Basket

T2

Basket Contents

Basket is displayed – user has option to continue shopping / confirm

Users can: Customer

Change quantity

Delete items

Edit basket / View details

Basket temporarily updated

Add extras / change Delivery details

Order history

Favourites list / similar items

D3

Orders

D4

Items Bought

D2

Basket Contents

D1

Customer Table

User confirms items in basket

Items stored permanently/ Order form created

Customer

Items confirmed successfully

User enters delivery address and completes order

Confirmation of order sent to email address

Checkout – confirming and creating orders Details in customer table email customer with invoice

Payment processed by accounts

User clicks pay now

Customer Selects payment / Adds new

Checkout Despatch and payment

Payment validated with bank, email confirms this

If error with payment – user corrects and re sends

Bank

D5

Transactions File

Tells warehouse it can begin despatch processing

D6

Warehouse / Despatch

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