I recently fell into a small rabbit hole and discovered the world model-based software development effort estimation. There are various models and tools like COCOMO (and the more recent COCOMO2) and others (See 1).<p>So far in my professional career, mostly in Start-ups I have yet to come accross anyone using those. Is this more common in langer orgs or government agencies? Are those helpful at all? Would love to learn about your experiences.<p>1: https://en.wikipedia.org/wiki/Software_development_effort_estimation#Comparison_of_development_estimation_software