Its different per company/country and can be different inside of one company and the different countries that company is in.
However, in the US it is typically
Base Salary + Short Term Incentives...
Total annual compensation would include base salary, any commission you would have made, any bonuses you would have received, and your health benefits package, i.e. medical and dental plan value.
Sum of direct benefits (such as salary, allowances, bonus, commission) and indirect benefits (such as insurance, pension plans, vacations) that an employee receives from an employer....