أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
By involving him or her in setting the target and rlating the target to his interest and motivation
By having clear procedures and process.
Team work.
Clear and reasonable target dates.
On going follow up.
Appreciation.
No no no you don't get staff to "accept" targets, that's no way to run a business.
What you should do is inspire, encourage and motivate your staff to set their own target at a level higher than the one you would have set, and then offer a bonus if they exceed it. (Obviously you have to coordinate this with the other departments in the chain.)