On 17/03/2023 9:20 am, Jeremy Nicoll wrote:
But doesn't the vendor already have to understand whether or not separate changes they've made to their product affect each other?
In theory yes, in practice you rely a lot on the compiler to verify calls between modules etc. It's much easier to do in source code than with object modules, and in high level languages the compiler does the checking much more accurately than any other process could.
Shipping exactly what you built rather than individual pieces of it is much easier and less error prone.
Obviously larger thing like an operating systems have components that are updated individually, but for a moderately sized self contained application full replacement makes a lot of sense. It's also usually less work for the customer - as long as the installation is well designed so customization doesn't have to be repeated.
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