After reading this thread, everyone convinced me there are good arguments for having different levels of metrics. I think we can better understand the problem i

After reading this thread, everyone convinced me there are good arguments for having different levels of metrics. I think we can better understand the problem if we introduce the word "priority". Priority is always the customer. The focus can change given the circumstances and the context of each issue. Sometimes the focus must be high-level, sometime it requires a low-level focus, but the priority is always the customer.