There is no doubt that nowadays software applications and products that have a significant contribution to our well-being are real-time. Real-time software makes systems responsive, reliable, and safe, especially in cases where timing is important — from healthcare and defense to entertainment and transportation. Such applications are helpful as they process and respond to data almost instantly or within a guaranteed time frame, which is critical when timing and accuracy directly affect performance, safety, or even user experience.
As a protocol that enables real-time, two-way (full-duplex) communication between a client and a server over a single, long-lived TCP connection, WebSockets are among the technologies used by such applications.
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