A short while ago I was asked this question from one of our reader: “ I want to set a KPI around how much of the time we meet the SLA. Like 'meeting the SLA x% of the time'. Can someone advise what would be that 'x'? What is the common practice? Is there an industry standard around this?” I’m going to have to go with the consultant answer and say it depends. First, are we talking about a single service to a single customer? Are we talking about multiple services to multiple customers or somewhere in between those two extremes? Your SLAs should include details of the anticipated performance that your customer expects. First thing you need to do is discuss with your customer what are the levels of utility and warranty they are expecting? Then document and agree these targets are reachable given the resources that are at your disposal and any constraints that may be discovered. The requirements for functionality (utility) should be defined by you...