One identity · The matching · Element

The method

How records are matched.

The part

What it is

Deterministic on a shared identifier, probabilistic on behavioural similarity, or a combination with deterministic preferred.

The method should be stated, since the consequences of each are different and the failure modes are opposite.

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.