ChatOpsis the DevOps practice of using chat platforms (like Slack, Teams, Mattermost) as the central interface for communication, collaboration, and even automated deployment or support tasks.
It encourages "conversation-driven development, delivery, and support," making processes transparent and collaborative.
* Second Way(A) is about feedback loops, but not specifically conversational platforms.
* Communication Platforms(C) is a generic term.
* VisOps(D) is not a standard DevOps term.
Extract-style reference:
"ChatOps is a collaboration model that connects people, tools, process, and automation into a transparent workflow. Teams communicate and execute commands from a central chat client."
-DevOps Handbook
PeopleCert Foundation v3.6: ChatOps promotes rapid feedback and a culture of sharing.