It should be done withe the help of rectangles, squares and boxes. The ER diagram that is$.$ Like to show strong double diamond is used. Thank you.

A$.$ ER diagram:

Entities:

I. Hospital $($HospitalID$,$ Name, Location$)$

II$.$ Department $($DeptID$,$ Name$)$

III. Patient $($PatientID$,$ FirstName, LastName, DOB$)$

IV$.$ Doctor $($DoctorID$,$ FirstName, LastName, Specialization$)$

V$.$ Visit $($VisitID$,$ VisitDate, Diagnosis$)$

VI$.$ Medication $($MedicationID$,$ Name, SideEffects$)$

Cardinality:

$1.$ Each hospital can have multiple departments, but each department belongs to one hospital.

$2.$ Each department can have multiple doctors, but each doctor belongs to one department.

$3.$ Each patient can have multiple visits, and each visit is associated with one patient.

$4.$ Each doctor can have multiple visits, and each visit is associated with one doctor.

$5.$ Each visit can prescribe multiple medications, and each medication can be prescribed in multiple visits.

Question:

$1.$ Assume that each department in a hospital can have multiple beds but each bed belongs to just one department. A bed is identified by its 'BedNumber' only within a department. Design an ER diagram that includes a weak entity set for the bed. How to make a Bed a strong entity? $(10$ pts$)$

$2.$ Assume that each doctor in a hospital belongs to at least one department but not all departments have a doctor. Draw your ER diagram to show this total and partial participation. $(10$ pts$)$

$3.$ Assume a patient can be assigned to multiple beds over multiple visits but each bed can have only one patient per visit. Represent this using a ternary relationship. $(10$ pts$)$

$4.$ Assume each patient visit involves one doctor, one patient, and one bed. Transform this ternary relationship into binary relationships and draw your ER diagram in this section.$(10$ pts$)$

$5.$ Assume that a patient can be treated by multiple doctors, and each doctor can treat multiple patients. The treatment has an additional attribute: "TreatmentDate". draw your ER diagram to represent this. $(10$ pts$)$

$6.$ Why might a doctor not give a prescription? What real$-$world scenarios might lead to this partial participation?$(10$ pts$)$

$7.$ Draw the final ER diagram. $(10$ pts$)$

B$.$ Decomposition:

Question:

$1.$ Given the relation Hospital$($HospitalID$,$ Name, Location, DeptID, DeptName$),$ and assuming functional dependencies: $(10$ pts$)$

HospitalID $->$ Name, Location

DeptID $->$ DeptName

Decompose the relation into $3$NF$.$

$2.$ Given the relation PatientVisit$($PatientID$,$ VisitID, DoctorID, Diagnosis$),$ and functional dependencies: $(10$ pts$)$

PatientID, VisitID $->$ Diagnosis

PatientID, DoctorID $->$ VisitID

Decompose the relation into BCNF$.$

$3.$ Given a relation MedicationPrescription$($MedicationID$,$ DoctorID, PatientID, PrescriptionDate$),$ and functional dependencies: $(10$ pts$)$

MedicationID, DoctorID $->$ PrescriptionDate

PrescriptionDate, PatientID $->$ MedicationID

Is this relation in BCNF$?$ If not, decompose it$.$ If yes, explain why.it