ERD diagram and MS ACCESS file

Part A: Develop an entity-relationship diagram (ERD) and its corresponding database (Microsoft Access) to be used by a product manufacturer to manage the s it receives from its customers. Part A will be submitted as an MS WORD document. Make sure the ERD diagram shows the relation between entities clearly. Use the attached document to develop ERD for your database.

Each customer is identified uniquely by a customer id; include the first name, last name, and address for each customer. 
The company has several products that it stocks and for which customers place s.
Each product has a unique id, unique name, unit price, and quantity on hand. At any time, a customer may place an which will involve possibly many products.
For each product ed the database must know the quantity ed and the unit price at that point in time. If the customer does this through a phone call then an employee is involved in the call and will be responsible for the from the company side.
Some s are placed via the Internet. For each , an number is generated. For each , the database must keep track of the number, the date the was placed, and the date by which the customer needs to receive the goods.

Part B: Consider the Orders database. This database has several one-to-many relationships. Part B will be submitted as an MS ACCESS file. Make sure one-to-many relationship runs between entities according to the ERD diagram in Part A Create appropriate forms to list:

A customer and the customer’s s
Order and its detail lines
A product and the detail lines where the product is referenced
A category and the products belonging to the category.

 Also, watch the video at the following link https://www.youtube.com/watch?v=57jBdK3YVJo