Giulio Cesare Solaroli

Barry’s core idea of residuality is pretty simple, but absolutely not trivial nor legacy.
The fancy takeaway is that, even with its simplicity, it enables a very effective new approach to system architecture evaluation and review. In the meantime, he defines an easily computable numerical metric that allows you to measure whether your reviewed solution is improving or not compared to the previous iteration.
Being simple and effective makes it really worth investigating, even if adopting it may require reviewing—and possibly dropping—some legacy tools that have repeatedly failed to deliver the expected insights, regardless of the amount of praise and words spent preaching them.