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properties /subscription & financing

qualified host number + unit a measured amount

instalment plan

A pay-over-time financing plan carried by the product — its value is the per-payment amount, a numeral with a currency unit (reuses Currencies). Cardinality many: a product may offer 6-month and 12-month plans. A correlated host bundle: each plan travels with its `installment_count` (how many payments), any `downpayment_amount`, and its `credit_type` (finance/lease/BNPL) — qualifiers with no home but the plan. Collapses Google Merchant installment, schema.org LoanOrCredit, and marketplace financing into ONE structure. Distinct from `recurring_price`: financing splits a one-off purchase into payments (it ends), a subscription pays for ongoing access (it recurs). The APR is derivable from the per-payment amount, count, down-payment and `list_price` (A10), not stored; the named lender/BNPL provider is per-offer checkout config (A6), downstream. The realised schedule is downstream (L1).

Instalment plan is a price, given as an amount in a currency such as USD or EUR.

It belongs to subscription & financing — one facet of a product.

the bundle what travels with each instalment plan

A instalment plan is not a lone value — each statement is a self-correlating bundle, carrying its own:

asked by the kinds that answer it

49 kinds answer it, each for any number of values. The same question can be reused by unrelated kinds — one meaning, many homes.

answered with
number + unit — a number paired with a unit drawn from an exhaustive unit vocabulary.
value domain
Currencies — the vocabulary its answers are drawn from.
concern
Subscription & financing — the facet of a product it belongs to.
qualifiers
instalment count (one) · down-payment amount (one) · credit type (one) — the bundle each statement carries.

asked by kinds that answer it

The same question can be reused by unrelated kinds — one meaning, many homes.

kindhow many
Product many