An objective tree starts with the over-arching objective. This is put in a box at the top of a page. The branches going down from this are those things you wish to achieve that will lead to the main objective (subgoal). Start a new branch for each individual subgoal, and add the steps necessary to achieve this subgoals. This process is continued until you have a "tree" that covers all your separate objectives. The end product will look somewhat similar to a "family tree".