As long as underlying data is preserved, software is better done fungible. Data formats change, processing models and architectures change, underlying hardware

As long as underlying data is preserved, software is better done fungible. Data formats change, processing models and architectures change, underlying hardware change - allowing us to do more with less. In my career I have found there are no stable architectures - systems require refactoring every couple of years to stay manageable and full rewrites possibly once every technology cycle to make it in tune with the times. This is not a limitation, but an opportunity as software is constantly evolving and is more like a living,breathing organism than a permanent structure.