The first key for creating strong objectives is to have clarity in your objectives. Clarity consists of knowing exactly what needs to be done and how it will be done in order to complete the objective.
When creating your objectives make sure you have control in reaching the objective.
If your objective has a component that is out of your control you need to refine your objective to remove that component. As an example, if your objective is to lose 10 pounds, it would be better to have the objective changed to specify what you are going to eat, or how much exercise. You can use the weight as a metric to help determine how much exercise or whether changes are required in your diet.
Create your objectives so you know and understand exactly what you need to do to complete the objective. When you know what you need to do you can focus on doing the work to complete the objective.