Emergence of Component Based Software Engineering

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It was noticed that, most software systems are not new but are variants of systems that had been already developed. Hence, a new systems may be developed partially if not completely, from the pre-existing systems by reusing it. This brings the idea of reusability and gave the birth of a noble concept of Component Based Software Development, beyond object oriented development paradigm. Component Based Software Development aims to construct complex software systems by means of integrating reusable software components. This approach promises to alleviate the software crisis at great extents.