John Doerr explains Objectives and Key Results (OKR) in his seminal book  Measure what Matters like this:

I will (Objective) as measured by (Key Result).

Here’s an example of a company OKR:

OBJECTIVE

Accelerate our global growth

Becoming a market leader definitely doesn’t happen overnight, but rather takes careful planning and hard work.

80%
КEY RESULT 1

Hire 50 new personnel at our EMEA offices

100%
КEY RESULT 2

Achieve $500M in total global sales

60%
КEY RESULT 3

Produce localized marketing materials in our top 6 geographical markets

80%