Direct Cross-reference to Other Models
As we have seen, this is very common
Objects/data (What)
What data is required to do the work?
What data is produced by the work?
Locations/sites (Where)
Where is the work done?
Parties/organizations/people (Who)
Who does the work?
Who is the recipient of the work?
Events/occurrences (When)
When is the work done? (triggers)