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Roles come and go
A status is true for a day. Give every role a start, an end and an owner, and ask any question as at a date.
Topics › Master and reference data › The same one, everywhere
Lists everyone uses: reference data with an owner, a date and one home
Airport codes outlive their reasons, because changing one costs everyone who uses it. At the university, Linh's tutor role has three names in three systems, and nothing written down says they match. A list of statuses is typed again in two tests, and a count lists her country three times. Jun gives each list one home: a table with each value's code and label, its owner, and the date it applies from. The tests read the list instead of typing it, a change is a pull request its owner approves, countries come from the international standard, and lists about people stay short and are asked for only with a purpose.
Builds on Roles come and go
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 given each list an owner, a date and one home.
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: Where each list lives →Take it apart: One list, every codeTake it apart: Change a value safelyMake the call: 8 situationsEvery lab
In the series: The same one, everywhere
Film 5 of 9.
Next · Film 6 of 9 →
For this purpose only
Data given for one role isn't free for every role. Write each role's purposes beside its data, and keep the person's wishes with her.