A payment method is a standardized procedure for transferring the monetary amount for a purchase. Payment methods are characterized by the legal and technical structures used, and by the organization or group carrying out the transaction. The following legacy values should be accepted: - http://purl.org/goodrelations/v1#ByBankTransferInAdvance - http://purl.org/goodrelations/v1#ByInvoice - http://purl.org/goodrelations/v1#Cash - http://purl.org/goodrelations/v1#CheckInAdvance - http://purl.org/goodrelations/v1#COD - http://purl.org/goodrelations/v1#DirectDebit - http://purl.org/goodrelations/v1#GoogleCheckout - http://purl.org/goodrelations/v1#PayPal - http://purl.org/goodrelations/v1#PaySwarm Structured values, or [UNCE payment means](https://vocabulary.uncefact.org/PaymentMeans) are recommended or for newer annotations.