notificationsystem

noun
UK /ˌnəʊtɪfɪˈkeɪʃən ˈsɪstəm/
US /ˌnoʊtɪfɪˈkeɪʃən ˈsɪstəm/

A notification system is a way for a computer or phone to tell you something new.

The app uses a notification system to remind me when it's time to drink water.


OTHER MEANINGS

2. A set of rules and tools a company uses to send important messages to many people at once.

The school's notification system sent a text to every parent about the snow day.

3. The part of a program that decides which alerts to show and when to show them.

Developers tested the notification system to make sure users weren't bothered too often.

4. A service that warns people about emergencies, like fires or bad weather.

The city's emergency notification system warned everyone to stay indoors.