The Digital NOTAM distribution services are:
1. Event Service
The Event Service allows distributing Digital Notam messages to interested clients. Clients can filter Digital Notam’s by message topic or geometry.
In addition to push mode IDS Event Service also offers pull mode, so that clients can retrieve messages just when they need it.
The Event Service is a publish/subscribe messaging system.The Oasis “Web Services Brokered Notification” standard was chosen for message exchange.
2. Web Feature Service (WFS)
The purpose of WFS is to allow client to query Digital NOTAMs by the following filters