Goal setting is important for organisation to realise their mission. Setting an inspirational goal is transforming a whole organisation into sets of focused people to achieve something great, something they can proud of and something everyone really wanted to do. Northstar metrics is one metrics that matter, it capture the core value that product delivers to customer. OKR is a framework that encourage a BHAG (Big hairy audacious goal) and select a single Northstart metric to guide organisation achieve great things.