1. Stark & Associates Health Clinic
E-R Diagram & Design
Project Team
Shawn Conatser
Madhusudan Gupta
Shyam Sundar Bhelle

2. Table of Contents System Concept Structure Chart E-R Diagram
Physical Design
Input
Output
Appendix A – Business Background
Appendix B – Data-Flow Diagrams

3. System Concept

4. Structure Chart

5. E-R Diagram

6. Physical Design
Patient(Patient_ID, Patient_LastName, Patient_ FirstName, Patient_MaritalStatus, Patient_ DOB, Patient_Gender, Patient_ Address, Patient_Phone, Patient_ )
Patient_History(Patient_ID, PHist_Measles, PHist_ Mumps, PHist_ Rubella, PHist_ Chickenpox, PHist_High_BloodPressure, …, PHist_ High_Cholestrol)
Patient_Insurance(Patient_ID, PI_Occupation, PI_Employer, PI_EmployerAddress, PI_EmployerPhone, PI_PrimaryInsurance, PI_GroupNum, PI_PolicyNum)
Appointment(Appoint_ID, Patient_ID, Doctor_ID, Appoint_Date, Appoint_Time, Appoint_Type, Pre_Exam_Height, Pre_Exam_Weight, Pre_Exam_Temp, Pre_Exam_Bloodpressure, Appoint_Symptoms, Appoint_Diagnosis, Appoint_Comments)
Medical_Supply(Supply_ID, Supply_Description, Supply_Price, Supply_Qty_Instock)
Consumed_Supply(Appoint_ID, Supply_ID, Qty_Consumed)
Doctor(Doctor_ID, Doctor_LastName, Doctor_FirstName, Doctor_Address, Doctor_Phone, Doctor_Pager, Doctor_ , Doctor_DOB, Doctor_Specialization)
Diagnostic_Procedure(Diagnostic_ID, Patient_ID, Doctor_ID, Diagnostic_Date, Diagnostic_Code, Diagnostic_Description, Diagnostic_Result)
Prescription(Presc_ID, Patient_ID, Doctor_ID, Presc_Date, Presc_Medication, Presc_Num_Refills)
Referral(Referral_ID, Patient_ID, Doctor_ID, Referral_Information)

7. Input: Patient Information

8. Output: Billing Statement

9. Questions ?

10. Appendix A Business Background

11. Background
Stark & Associates Health Clinic is a new enterprise that currently schedules patient appointments manually and processes hardcopy patient information
3 Doctors, 3 Nurses, and 5 Staff Members
On-site Diagnostic Lab

12. Business Need
This project has been initiated to increase revenue and reduce cost by creating a system that will improve the accuracy and efficiency of patient scheduling and information processing.

13. Business Requirements
Using the web or in-clinic computers, patients will be able to create an account that will allow them to schedule appointment(s) and provide their information.
Staff will be able to access patient information in order to process appointments and billing.
Nurses and doctors will be able to access patient information, input patient diagnosis, request diagnostic procedures, and generate prescription(s).

14. System Functionality Patient account creation and deletion
Allow patient information to be entered and updated
Contact information, medical history, insurance information, and billing information
Appointment scheduling (including confirmation)
Appointment data entry and retrieval
Patient pre-exam information (weight, blood pressure, etc.) entry (nurse/doctor)
Access previous appointment medical information (nurse/doctor)
Patient diagnosis entry (doctor)
Diagnostic procedure requests (nurse/doctor)
Generate prescriptions (doctor)

15. System Functionality Cont’d
Generate billing invoices
Employee account creation and deletion
Allow employee information to be entered and updated
Contact information
Allow employees to access and update work schedule
Report generation
Billing, salary, diagnostic procedure information, and prescription information

16. Appendix B Data-Flow Diagrams

17. Context Level Entities Patient Employee Doctor Nurse Staff
Diagnostic Lab System
Pharmacy System
Insurance System
Payment Clearing House

18. Context Diagram

19. Level 0 Entities Patient Employee Doctor Nurse Staff
Diagnostic Lab System
Pharmacy System
Insurance System
Payment Clearing House
Processes
Profile Processing
Scheduling
Exam Processing
Billing
Report Processing
Data Stores
Patient Data
Doctor Data
Nurse Data
Staff Data
Work Schedule Data
Appointment Data
Medical Supply Inventory
Billing Data
Invoice Record

20. Level 0 Diagram

21. Level 0 Diagram continued

22. Level 0 Diagram continued

23. Level 1 – Exam Processing
Entities
Patient
Doctor
Nurse
Staff
Diagnostic Lab System
Pharmacy System
Processes
Process Pre-Exam Information
Process Exam Information
Process Post-Exam Information
Data Stores
Patient Data
Medical Supply Inventory

24. Level 1 Diagram – Exam Processing

25. Level 1 - Billing Entities Patient Staff Insurance System
Payment Clearing House
Processes
Determine Total Due
Process Payment
Record Payment
Data Stores
Patient Data
Billing Data
Invoice Record

26. Level 1 Diagram – Billing

27. Level 2 – Determine Total Due
Entities
Patient
Staff
Insurance System
Processes
Determine Supply Total
Determine Diagnostic Total
Determine Exam Total
Data Stores
Patient Data
Medical Supply Inventory
Billing Data

28. Level 2 Diagram – Determine Total Due