It describes the steps that need to be taken to validate the DPI and API messages before these can be taken into operations. It applies to all types of connected airports, although the process may differ depending on the types of messages that are being transmitted and validated.
The NMOC and the Airport will have to plan and execute the DPI and API Operational evaluations in accordance with the steps that are described in this document.
This document also describes the DPI and API Validation Criteria. This is a set of measureable parameters that will determine if DPIs / APIs are ready to be put into operations.
The implementation details can be found in the DPI Implementation Guide, the API Implementation Guide, the Advanced ATC TWR Implementation Guide and the Flight Progress Messages document.