Without a central library, each project risks inconsistent implementations and hidden defects. Very few organizations maintain a modular, reusable in-house library, yet this practice directly improves reliability.
A shared library of components ensures that new projects are built on tested, proven modules. Developers can focus on business logic, while common functionality—error handling, validation, utility functions—is standardized and reliable.
Over time, the library reduces maintenance effort, because fixes applied to shared modules propagate to all dependent projects. Writing software abstractly enables future expansion of the library, continuously improving reliability across the organization.
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