Draw the E-R diagram for the above, providing the degree and cardinalities Suppose a medical group XYZ wants to store information about physicians & patients. Each physician has only one specialty. Patient records are shared among the doctors. For each patient visit, information is stored about the visit type (regular office, after hours, house call, etc), a single diagnosis for that visit, and the charge. Assume that a patient may visit more than one of the doctors on a particular day. We assume, however, that a patient never visits the same doctor more than once in one day. Draw the E-R diagram for the above, providing the degree and cardinalities

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Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.