Produce an entity-relationship diagram for the project

You are to produce an entity-relationship diagram for the project which must show:

Entities and relationships
Entities and relationships should be meaningfully named.
Primary and foreign keys
Sample attributes

Your model should be capable of handling customer orders, stock, dispatch notes, purchase orders, supplier parts list and back order requirements of Supplier invoices, delivery notes and credit card company transactions should be excluded.

Your model must conform to the rules as defined in "Standards for E-R

The time is limited for this project so please do not hesitate to contact me