In this episode of Testing in Production, Yoz Grahame is joined by Dylan Etkin, CEO of sleuth.io, to discuss measuring impact to changes in production. They talk about SLIs and deriving new SLIs, especially working out the value of them. They also discuss how to derive correlations between rise in one stat versus SLO problems or if it's going to end up causing more false positives than you think. Finally, they talk about using user behavior for SLIs and SLOs or is it just too much noise?