1. Draw a behavioral state machine that describes the various state that a travel authorization can have through its approval process. A travel authorization form is used in most companies to approve travel expenses for employee typically, an employee fills out a blank form and sends it to his or her boss for a signature. if the amount is fairly small(>300), then the boss sign the form and routes it to account a payable to be input into the accounting system. The system cut a check that is sent to the employee for the right amount, and after the check is cashed. The form is filed away with the canceled check. if the check is not cashed within 9oday the travel form expires , when the amount of the travel voucher is a larger amount (>300), the boss sign the form and sends it to the CFO, along with a paragraph explaining the purpose of the travel; the CFO sign the form and passes it along to accounts payable. Of course, the boss and the CFO can reject the travel authorization form if they do not feel that the expenses are reasonable . in this case, the employee can change the form to include more explanation or decide to pay expenses