Entity Relationship Diagram:

Draw an entity relationship diagram (E RD) for the following TWO situation s. Be sure to provide some basic attributes for each entity, and select an identifier, if possible. Also, draw the appropriate relation ships between the entities and label them. What is the cardinality for each relationship? Depict this on your drawing as well.

1. A wealthy businessman owns a large number of paintings that he loans to museum all over the world. He is interested in setting up an information systems that records what he loans to whom so that he does not lose track of his investments. He would like to keep information about the paintings that he owns as well as the artists who painted them. He also wants to track the various museums that reserve his art, along with the actual reservations. Obviously, artists are associated with paintings, paintings are associated with reservations, and reservations are associated with museums.

2. Whenever new patients are seen for the first time, they complete a patient information form that asks their name, address, phone number, and insurance carrier, all of which are stored in the patient information file. Patients can be signed up with only one carrier, but they must be signed up to be seen by the doctor. Each time a patient visits the doctor, an insurance claim is sent to the carrier for payment. The claim must contain information about the visit, such as the date, purpose, and cost. It would be possible for a patient to submit two claims on the same day.