[poulsbohemian]

Almost twenty years ago, I was on a team that built a bunch of health care apps where we had significant, robust mainframe business systems that we needed to get in front of both internal staff, external providers, and the public. So yes, those systems definitely used a whole lot of messaging and in my career since I saw repeats of those patterns not only in that industry, but also financial services, telco, and lots of other places I stopped along the way. Anyplace you’ve got hulking business systems with lots of rules, it’s common to have messaging in between there and the web, and for various distributed applications to talk to each other.