Definition
A NextGen capability in which a single, common set of operational data — including flight plans, weather, traffic, and airspace status — is made available simultaneously to all participants in the air traffic system, including pilots, controllers, dispatchers, and traffic flow managers, so that decisions are based on the same real-time information.
Plain English
Everyone involved in a flight — the pilot, the controllers, the airline, and the traffic managers — sees the same information at the same time, so they can all make decisions based on the same picture of what is happening.
Context Anchor
Seen in NextGen discussions about how pilots, controllers, dispatchers, and other aviation users share flight and weather information through modern systems.
Why Pilots Care
Gives pilots immediate access to shared data that improves situational awareness and supports safer flight decisions.
Analogy
Think of a shared online document where the pilot, controller, and dispatcher all see edits in real time, instead of each working from their own emailed copy.
Intuition Check
Do not read this as casual sharing or public access to everything. In this context, it means controlled sharing of operational aviation information among the users who need it.
Example Sentence 1
Multi-user information sharing allows the dispatcher and the controller to see the same updated weather picture the pilot is using to plan a deviation.
Example Sentence 2
Multi-user information sharing let the controller broadcast a revised routing to all affected flights at once.