runtime-adjustable program

noun
UK /ˈrʌn.taɪm əˈdʒʌs.tə.bəl ˈprəʊ.ɡræm/
US /ˈrʌn.taɪm əˈdʒʌs.tə.bəl ˈproʊ.ɡræm/

A program that you can change while it is running.

The game uses a runtime-adjustable program so players can change the difficulty without restarting.


OTHER MEANINGS

2. Software whose settings can be modified during execution without recompilation.

Engineers built a runtime-adjustable program to tune the robot's speed on the fly.

3. An application that lets users change behavior while it is active.

The runtime-adjustable program let the operator switch modes mid-flight.

4. A system whose parameters are altered live rather than at startup.

Because it was a runtime-adjustable program, the server adapted to traffic spikes instantly.