Design and Architect a Subscription Management Module

Subscription management
a. User Registration
b. Plan Selection
c. Payment Interface
d. Contract Management
i. Track Start, End Date
ii. Notification
iii. License Management
iv. Billing
1. Bill Payment
2. Default Management
a. Late Notification
b. Late Fee
c. Access Restriction
v. Access Control

Deliverables Systems Requirement Document and Architecture Document.
Technology PHP, Code Ignitor, MY SQL