Data Collection · Instrumentation · Component
The joins
Whether captured data can be connected to a person, account or session — which determines most of what analysis is possible.
The deliverable
What it is
Data that cannot be joined answers only questions about aggregates. The moment a question involves a sequence — what happened before someone did this — joins become necessary.
Identity resolution across systems and across devices is the part that is either designed early or is impossible later.
One level in
What it is made of
Each element is a constituent part of the component. Follow one to see the attributes it carries.
The resolution
How separate records are recognised as the same entity.
3 attributes: Resolution rule · Match rate · False matches
LearnThe limits
What cannot be joined, and what that prevents.
3 attributes: Cannot join · Reason · Questions blocked
Learn
Identity resolution across systems is designed early or it is impossible later. There is no middle option.
The other components in instrumentation
The tracking plan
What is captured, where, with which fields — without which instrumentation is discovered by reading code.
LearnThe gaps
Questions that cannot be answered with current instrumentation — kept so the next change to the system can close one.
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