An approach to software development centered around the construction of systems from pre-built, independent units. These units, designed to encapsulate specific functionalities, offer a modular and reusable strategy for creating complex applications. A practical illustration involves employing ready-made graphical user interface elements, such as buttons and text boxes, in the development of a larger software program, rather than coding them from scratch.
The significance of this methodology stems from its capacity to expedite development cycles, reduce costs, and enhance overall software quality. Reusing well-tested units minimizes redundancy, leading to more maintainable and reliable systems. Historically, its emergence reflected the increasing complexity of software projects and the need for more efficient development paradigms, moving away from monolithic architectures.