CBSE is a process that emphasize the plan and building of computer based systems using reusable software components. The ground of software systems has become increasingly complex and performance precise. To produce cost-effective systems, organizations often make use of componentbased technologies as an substitute to rising the whole system from scratch. Build up representative dataset of projects(object-oriented). Identify parameters which impact the changeability & reusability of software components. Develop a framework and to measure the changeability, reusability metrics.