Component-based software engineering
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![A simple example of several software components - pictured within a hypothetical holiday-reservation system represented in UML 2.0.](/Images/godic/202501/05/Component-based-Software-Engineering-example20748.png")
Component-based software engineering (CBSE), also known as component-based development (CBD), is a branch of software engineering that emphasizes the separation of concerns in respect of the wide-ranging functionality available throughout a given software system. It is a reuse-based approach to defining, implementing and composing loosely coupled independent components into systems. This practice aims to bring about an equally wide-ranging degree of benefits in both the short-term and the long-term for the software itself and for organizations that sponsor such software.