FDM.4:5.2 - Deriving the position through an interpreted calculation

Consider a variant in which receipt of 60 is established, but the supplied terms classify it as refundable cash collateral. The terms leave the borrower’s loan obligation of 105 unchanged. Subtracting 60 from 105 still produces 45 arithmetically, but does not describe the remaining loan obligation under these terms. The account instead retains the obligation of 105 and the separate collateral position.

While applying the contractual classification, the modeler is deriving the financial effect and constructing the position account. What the larger account must explain determines what the local calculation may claim. The earlier repayment example permits the subtraction; this collateral example does not. The banking receipt supplies an occurrence to interpret, rather than becoming part of the modeler’s act of interpretation.

Someone who can calculate but cannot interpret the collateral terms needs to learn to interpret them or obtain an adequate interpretation from an appropriate specialist. Once the interpretation is adequate, the account can proceed without a fresh investigation of the already established receipt. If the terms later provide that collateral is applied to the debt, establish the event and effect under that changed condition before updating the obligation.