Yeah, we've got more than enough history to look at to draw conclusions from re: "web" and "internet" software/services. Any new projects should have a "migrat

Yeah, we've got more than enough history to look at to draw conclusions from re: "web" and "internet" software/services. Any new projects should have a "migration" or "upgrade" metric associated - how long will it take to upgrade to the next major version of the employed platform? how long will it take to migrate to a different platform? no doubt there are not always simple answers, but it's something which needs to at least be considered. And there are sometimes really "single source" options with no viable competition, but those are possibly more rare than we'd think, and even if not, the risk needs to be called out even more in those project/contracts then.