I hope you had a nice weekend! The database administrator has told me that he will have time next week to start building the database. In that case, I need for you to focus on the ERD and the database design this week. When you start the ERD, be sure to focus on the entities previously employed when creating the DFD and Use Case Diagram. Think about all the major activities between each of these entities and determine the type of relationship between the entities. Remember, the best table relationships are 1:1 or 1:M. Use the M:N relationships sparingly. Once you have created the ERD, you will be designing the tables for the database in 3NF. I wanted to further clarify the database requirement. As I previously stated, the database administrator needs the new database in 3NF. Each table should list all the necessary fields. You should have done some of this work when you created the user interface screens a few weeks ago. Highlight which field(s) is/are the primary key.

Date Called	Date of Service	Appliance type	Appliance serial number	Parts Needed	Technician assigned	Customer Name	Customer Address	Customer Phone
1/6	1/6	Refrigerator	KN-78-215-896	KN-1256	Robles	Sophie Goldberg	123 Main St, Hopkinton, MA	508-555-1256
1/6	1/7	Dishwasher	WP-55-311-698	WP-1788	Wong	Mitch Chu	5525 Winter Rd, Medford, MA	617-555-9898
1/7	1/7	Refrigerator	WP-78-956-694	WP-8877	Henson	Jamie Fernandez	2 Hope St, Hull, MA	617-555-4125
1/8	1/10	Microwave	AB-99-357-753	AB-3321	Wong	Mike Singh	15 Arch St, Tewksbury, MA	508-555-3596
1/9	1/9	Washing machine	GE-10-122-542	GE-2119	Robles	George Kostanza	369 Pike Circle, Danvers, MA	508-555-6235
1/9	1/10	Dishwasher	KN-55-396-477	KN-5511	Robles	Felicia Parkinson	50 Central Ave, Hopedale, MA	508-555-2144