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One person, many roles
One person, four systems, five records. Keep the person apart from the roles, and ask four questions to know what needs mastering.
Topics › Master and reference data › The same one, everywhere
Who is it? Master or reference data, the golden record, and a match decided once
In 1556, a village took the wrong man for Martin Guerre, because so much matched. At the university, a duplicate check proposes three pairs, and Mei's office decides each one: Linh's two student numbers, linked with a reason; HR's record of her, scored weight by weight, its birth date one digit apart; and two students called Aisha who share a number but are two people. A golden record keeps every source as it arrived, so any link can be undone.
Builds on One person, many roles
Watch the film
Press Play, or pick a chapter. Turn on Pause and think to stop for one question at the end of chapters.
Download the videoCaption filesRead the script
Where next?
You've seen who is who decided once, with a reason.
Think it through
The four Pause and think questions, for a class or a team. Open one to see the answer.
Take it apart, then make the call
This film's labs, and its situations, among the series' 29 labs and 72 situations. Your progress stays in this browser.
Take it apart: Master or reference? →Take it apart: What a master record isTake it apart: Same person?Take it apart: Where to draw the linesMake the call: 8 situationsEvery lab
In the series: The same one, everywhere
Film 2 of 9.
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Which value wins
Five linked records, and the values still disagree. Declare a rule for each field, not one order hidden in the code.