2 ms·Those 'isolated units' are commonly called libraries then.by Shorel 14y agoThose 'isolated units' are commonly called libraries then.moe 14y agoNo. They are called "module".Shorel 14y agoYes, I agree with that name, libraries usually start as modules and some extra work is required to convert a module to a library. Also, a library can be thought of as a collection of modules.