[darkwater]

On the rest I agree but on

> Raw metrics are pretty useless. They need to be manipulated into buisness goals: service x is producing 3% 5xx errors vs % of visitors unable to perform action x

I think in general the business goals metrics are OK but you still need to keep lower level metrics as well, otherwise it would be more difficult to pinpoint the exact failure, you will just know that a % of visitors is unable to perform action X. In a moderately-complex system a user-level action X is probably composed by several low-level services.

[KaiserPro]

I agree wholeheartedly.

I was trying to get across that just because you collect metrics it doesn't make them useful. I encourage people to generate metrics for everything, we can always join them together later to make something useful.

I think what I should have said is: "Collect metrics for everything, but be sure to display them is a way thats relevant to the customer"