Write a report showing the design principles and basic ideas. List all entities and attributes. State all pros and cons of the E-R diagram

Hospital Procedure Enacts PURCHASE PK Purchase_ID Product Quantity Total OPERATION PK Operation ID OFK Surgeon_ID Quantity Price PATIENTS PK Patient ID # FK Hospital_ID > Undergoes. HOSPITAL PK Hospital ID Name Address Phone Stay's In Uses Maintains INVENTORY PK Product ID FK Manufacturer_ID Purchase_Price Purchase Date Catagory Location HOSPITAL BED PK Hospital_Bed_ID FK Patient ID FK Operation_ID FK Hospital_ID Admission_Time MANUFACTURER PK Manufacturer_ID FK Product_ID Name Country Phone + Has added / COMPONENT PK Product ID System (Y/N) Product Description + Price Discount (Y/N) Product Category Creates # Is Billed 0 Mandatory, And BILLING PK Billing_ID FK Purchase_ID Patient ACCT Total LEADS Lead Voltage Type Lead Voltage_Type ACCESSORIES Accessories Description Accessories_Description PACEMAKER SYSTEM Pacemaker Voltage Type Pacemaker_Voltage_Type