There must be a clear time frame. Of course, which may be defined as the day, week, month, quarter, half-year or 1 year should not set goals that are too long for the target year to achieve 1 in recent years.
Have a definite time frame, which may be defined as a day, week, month, quarter, half year or one year should set a long goal that achieve more than 1 year for that year.
Must have a clear framework of the period, of course, are determined. Which may be daily, weekly, monthly, quarterly, half a year or 1 years should not set too long 1 years. The goal to achieve for that year.