The Hidden Cost of Software Rewrites
Why greenfield rewrites erase institutional knowledge, and how reversible decisions let systems evolve without forcing a costly rebuild.
The cost of amnesia in software development is a hidden expense that often goes unnoticed. As systems age, they accumulate knowledge and experience, which is essential for their functioning and adaptability. When a system is rewritten, this accumulated knowledge is lost, leading to a fresh start with only assumptions about the old system's functionality and its significance.
This leads to a situation where the new system, while seemingly simpler, is unaware of the challenges and peculiarities that made the previous system complex. The result is a loss of valuable insights gained through experience, and a fresh system that fails to learn from its predecessor's mistakes, eventually leading to recurring issues and inefficiencies.
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