Choosing what to measure · The balance · Element

The leading and lagging

Which measures move before the outcome and which after.

The part

What it is

A leading measure permits a response; a lagging one permits an explanation. Both are needed and only one is usually present.

Leading measures are harder to choose because the relationship to the outcome is a hypothesis rather than a fact.

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.