Principles

The guiding principle is that the system should be as easy to join as possible without complex logins, etc.

Karttahimmeli is a situational awareness system based on a shared map, focusing on sharing map annotations among participants in the operation. The aim is not to add all possible GPS and map software functions to the application. It is still sometimes advisable to use other devices to record the route traveled, even though the tail is shown on the map.