Process Entity Relationship V 1

Introduction: The purpose of this matrix is to display the relationship between the business process and data used by it. It enables users to check which entities are used by which processes and how they are being used. Some processes are responsible for the creation of data and others may read, update or delete them. The application design transformer uses the process/entity usages to create the table usages.
Convention
C - Create, R -Read, U - Update, D - Delete

List of Process/function in Doctor and Patient Communication System
Functionality/Process Name
Description
Create account /Register user
Create a user account for Doctor and Patient
Log in to system
Log into system with provided credential
Create message
Create a message to facilitate the communication
Read message
Message read by Doctor or Patient
Reply to messages
Reply to Message by Doctor or Patient

List of Entities in Doctor and Patient Communication System
Entity Name
Description
Message
Text content used to exchange information between Doctor and patient.
Doctor
Doctor entity is used to store Doctor related information
Patient
Patient entity is used to store patients related information
Account
Account entity is used to store all the accounts created in the system for Doctors and Patients

Entity – Function Matrix

Entity

Process

Message
Doctor
Patient
Account
Create account /Register user

C
C
C
Log in to system

R
R
R
Create message
C

Read message
RU

Reply to messages
CRU

Network Diagram