> Agility is probably a better proxy -- given a new business need / requirement (e.g. ACA in US health insurance), how quickly can a company execute on it?
Yes, probably, but I think performance is pretty good sign too. Old legacy systems are often complex so new functionality is always bolted on-top, and not baked-in. Making architectural changes like that is risky.
And, third-party integrations are going to be preferred. So over time the application becomes incredibly slow. There's layers and layers of cruft and then calls to third parties around every corner.
Yes, probably, but I think performance is pretty good sign too. Old legacy systems are often complex so new functionality is always bolted on-top, and not baked-in. Making architectural changes like that is risky.
And, third-party integrations are going to be preferred. So over time the application becomes incredibly slow. There's layers and layers of cruft and then calls to third parties around every corner.