Hi James. For example, in the case of household surveys, information is collected for the household and then for each person living in the household (many hundreds of questions for each person). Let’s consider the following survey:
begin group | household |
select_one Milieu | Milieu |
text | address |
… | … |
… | … |
… | … |
begin repeat | person |
text | name |
integer | age |
… | … |
… | … |
… | … |
end repeat | Person |
end group | household |
Now we suppose that the surveyed household contains 3 persons: Alice (age=18), Bob (20) and John (40).
The idea is that we can define the title as follow:
concat('Household Survey:', ' ', ${name}, ' ', ${age})
then the title will be initially “Household Survey:”
then when collecting Alice information it will be “'Household Survey: Alice, 18”
then when collecting Bob information it will be “'Household Survey: Bob, 20”
etc.
