Offline Operation Design

Problem statement

The app must perform critical data capture and display operations without an active internet connection.

In scope

1. Ensure that the dynamic registration/delivery forms are cached locally

2. Use the cached dynamic forms to get user input and save the data locally.

3. Once the device is back online, sync the locally saved data to the remote server.

4. The user-facing form components must be localized. As such, the form-specific localization dictionaries must also be cached offline.

5. Critical information (like SoS contacts) needs to be persisted locally. For V1, this information can be static.

6. The system needs to be flexible enough to allow control over storage affinity

   1. Fully online

   2. Online with local cache

   3. Offline first