Table 1.

General detection of a hot zone

Actor’s actions	System’s answers
	1.- This use case starts when thenotification service obtains users’geoposition.
	2.- The notification service requestsinformation from the server withusers’ geoposition and the hotzones closest to them.
	3.- It determines if users are near ahot zone, using distances that havebeen configured previously.
	4.- It notifies users of the hot zonethrough the notifications bar.
5.- Users select thenotification.
	6.- The system opens a windowusing mapview, in which it shows the various hot zones including their radius.
7.- Users can select arisk presented in themapview and obtaininformation about it(available when theapplication is usedfor infectious diseasesprevention).
Alternative flow:	3.- The notification service did notfind a hot zone near users’geoposition, therefore the system checks again after X amount of time has passed or Y meters have beentraveled.

This table presents an extension of the General detection of a geographic use case, in a conversational format, which emphasizes the interaction between the actors and the system.