Customer

idfirstNamelastNamedateOfBirth
1JohnDoe1980-01-01
2JaneSmith1976-02-23

SavingsAccount

accountNumbercustomerIdbalanceinterestRate
(→ Customer.id)
111000.01.0
222000.02.0

RetirementSavingsPlan

planIdretirementTyperateOfReturnsavingsAmount
(→ RateOfReturn.value)
1Pension Plan0.055000.0
2Pension Plan0.076000.0
3Brokerage Account0.053000.0
4Brokerage Account0.074000.0

RateOfReturn

valuedescription
0.055% Annual Return
0.077% Annual Return