What Does Decoupled Mean?

Decoupled, or decoupling, is a state of an IT environment in which two or more systems somehow work or are connected without being directly connected.


In a decoupled microservices architecture, for example, software services have none or very little knowledge about the other services. In theory, this means that a change can be made to one service without the developer having to worry about how the change will impact other services — as long as the service's application programming interface (API) remains the same.

A decoupled architecture allows software development teams to build, execute, test and debug application modules independently. This approach also allows each module to be developed and maintained by a different team of software developers.

Techopedia Explains Decoupled

Cloud computing architecture is often referred to as an example of decoupled architecture because the vendor and consumer independently operate and manage their resources. For example, with infrastructure-as-a-service (IaaS), the cloud provider is responsible for delivering the cloud or backend infrastructure but does not have any control over what applications the customer will install on top of it.


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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…