This document outlines the data flow and entity relationship diagrams for an apartment management system. The data flow diagram shows information flowing between users at different levels, with level 1 showing the major system processes and level 2 breaking these down further. The entity relationship diagram models the key entities (e.g. users, apartments, rent details) and their relationships.

1. APARTMENT MANAGEMENT
SYSTEM
1. Data Flow Diagram:
 Level 0:
 Level 1:
User User
Apartment
Management
System
User
5
Staff
4
Tenant
3
Owner
2
Manager
1
Admin
User

2.  Level 2:
1
Admin
1.1
AddBlock
1.2
AddApartment
1.5
AddRentDetails
1.4
View Complaint
details
1.3
View/ApproveUser
Details
1.6
View/GenerateBill
1
Admin
1.1
Login

3.  Level 2:
2
Manager
2
Manager
2.1
AddStaff category
2.2
Accept/Reject/View
Staff Details
2.3
Allotworkforstaff
2.1
Login

4.  Level 2:
3
Owner
3
Owner
3.1
Registration
3.2
Login
3.3
View/EditProfile
3.4
Complaint
Registration
3.5
View Complaint
Status
3.6
View Rent/Bill

5.  Level 2:
4
Tenant
4
Owner
4.1
Registration
4.2
Login
4.3
View/EditProfile
4.4
Complaint
Registration
4.5
View Complaint
Status
4.6
View Rent/Bill

6.  Level 2:
5
Staff
3
Staff
5.1
Registration
5.2
Login
5.3
View/EditProfile
5.5
View Workallotment

7. 2. Entity Relationship Diagram