Notifications App

Notifications app send messages to users, in some ways (Email, Telegram...).
Based on events with some specific observers.

Model Objects

Details

• Contact: Represent a person or a group (mailing list ou Telegram group) with only one contact information.
• Subscription: It's like a magazine subscription, a user can register a subscription on some events and receive notification via the medium of his/her choice.

Entities Relationship Diagram