Asynchronous communication describes a method of exchanging information where messages are sent and received independently, without the need for all participants to be engaged at the same time. Unlike real-time or synchronous communication where a continuous, two-way connection is necessary (like a phone call), asynchronous exchanges allow individuals to respond at their own convenience.

In this model, data is transmitted intermittently rather than in a steady, synchronized stream. The sender transmits a message, and the recipient can access, read, and reply to it whenever their schedule allows. This approach provides significant flexibility, making it a cornerstone of modern digital collaboration. Common examples include sending an email, leaving a voicemail, or messaging on platforms like Slack and Microsoft Teams, where an immediate response is not required.