Editing Data Architecture (section)

=== Key Components ===

* '''Firebase Authentication'''

  * Authenticates users and devices (e.g., kiosk operators, customers, franchisees).
  * Supports multi-platform logins and enforces secure, role-based access.

* '''Firestore (Cloud Firestore)'''

  * NoSQL database used to store metadata for scans, kiosk statuses, user profiles.
  * Real-time updates across web and mobile clients.
  * Offline caching support for kiosk and mobile operations.

* '''Firebase Cloud Storage'''

  * Stores large files including 3D ear scans, images, diagnostic logs.
  * Access control rules tied to user or kiosk identity.

* '''Firebase Cloud Functions'''

  * Hosts backend logic for events like scan upload, payment processing, and scan-to-CAD conversion.

* '''Firebase Hosting'''

  * Serves static pages and web applications (e.g., Find a Scanner, Admin Dashboard).

* '''Analytics and Crashlytics'''

  * Provides usage statistics, session tracking, and error diagnostics.