I don't get your question. Usually you have a starting point and move towards a target architecture. Jira is no end in itself, only a tool. From a technical pe

I don't get your question. Usually you have a starting point and move towards a target architecture. Jira is no end in itself, only a tool. From a technical perspective, successful switch is done when all the old code can be deleted, while the new one is in production. Management is more concerned with time, money and resources. On the way towards your goal, whatever you decide on, is Jira and there are many ways to go. There are several enterprise migration patterns available, for example the Strangler Pattern for monoliths. This is just one approach. It really depends on the size and importance of your app as well as your resources.