When a customer wants to pay for a transaction by swiping their credit or debit card on the iPad device that is running ASA, the Mobile POS Checkout process begins. Functionally, the tender is authorized and transacted through mobile ORPOS. The project ATGAgentPlugins facilitates communication between ASA and ORMPOS and contains all ORMPOS web service client code. To make clear which classes are POS-related, all classes in ATGPOSClient are pre-fixed with ATGPOS.