Based on the information given:

Draw a complete Entity-Relationship Diagram using UML notation.

GymStyle Fitness Center is providing a commercial fitness services to the community in Bukit Baru, Melaka. This center offers commercial gym style equipment with modern gym style services. To support the business process with an increasing number of customers, the company decides to enhance the information systems. As a system analyst, you have been asked by the manager to analyze the systems requirements before the development starts. The requirements are as follows: Customers need to register a membership in order to use the services offered by the center. The records of customer are customer number, customer name, address made up of street, city, state and postcode, age and contact number. Membership details are membership number, name, type, validity, and fee. There are only two types of membership: premium membership and gold membership. Premium membership customers are entitled to get discounts. Information on discount includes discount number, date, and amount. Customers can enter to only one fitness class. Fitness class details are class ID, class name, type, timeslot and charge. One fitness class can have maximum to 5 customers only. Each fitness class is conducted by a coach. Coach details include Coach ID, coach name, and phone number. One coach can conducts more than one class