Question
A health analytics platform maintains data about patients, diagnostic tests, doctors, and test results. Analysts want to query trends across diseases, age groups, and regions. Design an ER diagram for this system. Clearly identify entities, relationships, key attributes, and constraints. State assumptions made.
Answer :
Word Count : 250
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To design an ER diagram for the health analytics platform, we identify the main entities involved, their attributes, and the relationships between them. Entities: 1. Patient: This entity represents the individuals receiving care. * Attributes: Patient_ID (Primary Key), Name, Age, Gender, Address, Contact_Info, Region. 2. Doctor: This entity represents medical professionals. * Attributes: Doctor_ID (Primary Key), Name, Specialty, Contact_Info, Region. 3. Diagnostic_Test: Represents medical tests conducted. * Attributes: Test_ID (Primary Key), Test_Name, Test_Type, Cost. 4. Test_Result: Represents the outcome of a diagnostic test for a patient. * Attributes: Result_ID (Primary Key), Test_ID (Foreign Key), Patient_ID (Foreign Key), Doctor_ID (Foreign Key),
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