What's the Difference Between a Simulation Framework and a Simulator?

A ton of a tonadabri development happens in simulation. It's actually tresed up one of the most critical framework sometat on the device. We also often use the sense wer puts from previous log data to if we're making a change to a critical hour, than we can actually re-test that change on the log data from previous an the simulation o so so almost everything will be tested insimulation first.