== Payment Application
**Transaction**
**Signup**
**Rebill**
**Refund**
**Chargeback**
**Order**
**Service**
**Subscription**
**Payment Item**
==== Payment Processor
Payment Processor is external entity which Payment can use to actually charge user for purchased services and goods.
**Payment Gateway**
**Merchant Account**
**Cross Sale**
== General Purpose
**BIN** - **B**ank **I**dentification **N**umber. First 6 digits of card number.
**CVV**