In assignment, you have already started the process of designing a database for the Beauty Salon mini-case (enclosed again below), mainly in the phase of conceptual database design, and a draft ER diagram has been created for this purpose. Here you will further refine your database design for the other design phases.

In this assignment, you will in particular complete the logical design through the normalisation process, have it physically implemented, perform a few important queries in SQL, and establish certain stored procedures or functions in Transact SQL (T-SQL) to process data or verify database integrity. Your design of relational model should be done in such a way that business rules and data integrity are ensured by the intrinsic design of the database as much as possible.