where I find a guide explaining some zuora picklist values

[rmauriello]

Hi to all,
I would like to understand how some picklist values involve on product rate plan charge, and what a configuration involves instead of another.
in detail, I refer to:

1) BillingPeriodAlignment
- AlignToCharge
- AlignToSubscriptionStart
- AlignToTermStart

2) BillCycleType
- DefaultFromCustomer
- SpecificDayofMonth
- SubscriptionStartDay
- ChargeTriggerDay
- SpecificDayofWeek

Thanks in advance.