Collaborative Editing is powered by which technology?

• A. Synchrony
• B. WebSockets
• C. Java RMI
• D. CRDT

Answer: (A)

Collaborative editing relies on a real-time collaboration engine that coordinates edits from multiple users and keeps document state in sync across all clients. That engine for Atlassian’s collaboration features is Synchrony, which manages receiving edits from users, distributing those changes to everyone else, and handling any conflicts so the document remains consistent as people type together. WebSockets serves as the transport to push updates in real time, but it’s the Synchrony engine that powers the collaboration itself. Java RMI isn’t relevant to web-based, browser-to-browser editing, and CRDT is a different approach to merging concurrent changes that isn’t what Atlassian labels as Synchrony here. Therefore, Synchrony is the technology behind Collaborative Editing.