InfReqOpng
Mandatory
InvstgtnId
Mandatory
LglMndtBsis
Mandatory
CnfdtltySts
Mandatory
DueDt
Optional
InvstgtnPrd
Mandatory
DatePeriodDetails
Dt
Choice
Type: DatePeriodDetails
FrDt
Mandatory
ToDt
Mandatory
Choice
SchCrit
Mandatory
SplmtryData
Repetition (0..n)