The terms the tests are written in: the states the system can be in, the things that can happen, and the shorthand for a few of them together. The docs word each one with its Say:, Set: and Shows:.
States
State
Can be
To change it
the kettle
off · starting · heating · dry
the dial
a number from 0 to 100 %
Drag the DIAL slider to ….
the preset
WARM · HOT · BOIL
the child lock
on · off
Actions
Action
What to do
the user presses start
Tap START.
the user presses reset
Tap RESET.
the user presses preset
Tap PRESET.
the user presses lock
Tap LOCK.
the water runs out
Nothing: it happens by itself.
Shorthand
Phrase
Means
the kettle is plugged in and full
Open the app. (the kettle is off, the dial is 0 %, the preset is WARM and the child lock is off)