Not software development, but most CAD version control systems are lock based. You checkout your model or assembly, lock the parts/drawings/assembly you are wor

Not software development, but most CAD version control systems are lock based. You checkout your model or assembly, lock the parts/drawings/assembly you are working on and that prevents others from working on the same bit. Some allow a level of collaboration where two people can be working on different components within the same assembly at once. Most of these version control systems are part of a larger software package call a PLM system (Product Lifecycle Management) designed to help manage all aspects of product development from concept through to manufacturing. https://en.m.wikipedia.org/wiki/Product_lifecycle https://en.m.wikipedia.org/wiki/Product_lifecycle