The measure

How the shift will be detected.

The part

What it is

The same instrument used in the tracking work, so that the change is visible in the trend rather than in a separate study designed to find it.

A separate study run specifically to measure the change will find it, which is why it should not be used.

The smallest level

The attributes it carries

Each attribute is one of the framework’s shared types. What a date is, and how it is written, is defined once for the whole model — the note here says what it means in this particular place.

Instrument
Which existing tracking measure will show the shift.
Reference shared type
Threshold
What movement counts as success.
Measure shared type
Checked
How often it is read, given that movement is slow.
Period shared type