Key Result is a measure of success when it comes to assessing your Objective. It is a verifiable, quantitative element attached to every Objective. Typically, there may be 1-5 Key Results attached to an Objective and a collection of them help achieve that Objective. Every Key Result contains a metric/ KPI and a target (quantity and time).  Eg- Improve net promoter score from 40 to 60 in quarter 1. Here, net promoter score is he metric, the target is 40-60 in quarter 1.