need dfd level $0,1$ and $2$ for hospital management system $($admin$,$ patient and doctor$)$ DO NOT USE CHATGPT:

Things to mention:

Process $1$: User Authentication and Authorization

Purpose: Authenticate and authorize users $($Administrators$,$ Doctors, Patients$).$

Inputs: Username and password.

Outputs: Access permissions and roles.

Interactions:

Users $($Administrator$,$ Doctor, Patient$)$ provide login credentials.The system validates these credentials and assigns the corresponding access rights using the User Database.

Process $2$: Doctor Management

Purpose: Manage doctor profiles and availability information.

Inputs: Doctor profile data $($Name$,$ Specialization, Contact Information$).$

Outputs: Updated doctor profiles and schedules.

Interactions:

Administrator can add$/$update$/$remove doctor profiles.Doctors can update their profiles and availability information.Data stored and retrieved from the Doctors Database.

Process $3$: Appointment Management

Purpose: Handle appointment requests and scheduling $($approve$,$ reject, modify$).$

Inputs: Appointment requests $($Date$,$ Time, Doctor ID$,$ Patient ID$).$

Outputs: Appointment status $($Pending$,$ Approved, Rejected$).$

Interactions:

Patients submit appointment requests.Doctors view appointment requests and approve or reject them.Information is stored in and retrieved from the Appointments Database.

Process $4$: Hospital Operations Management

Purpose: Streamline hospital administration, including monitoring operations and generating reports.

Inputs: Hospital data, Staff records, Patient statistics, Department info.

Outputs: Reports on appointments, department efficiency, and hospital operations.

Interactions:

Administrators access hospital operations data.Generate reports for hospital performance, doctor availability, and appointment statistics.Data is stored in and accessed from the Reports Database.

Process $5$: Patient Registration and Profile Management

Purpose: Register new patients and manage existing profiles.

Inputs: Patient information $($Name$,$ Age, Contact, Address$).$

Outputs: Registered patient profiles, updated contact details.

Interactions:

Patients submit registration information.Information is stored in and managed through the Patients Database.