How human resources department is involved in Human Resources Planning?

There is a relationship between Management and Human Resources Management and these two should consult with one another, management would not have the information such as personell records, staff satisfaction, position details and HR expertise to do this on their own and the human resources department would not have the knowledge or expertise to deal with the financial and business side of the descision. Planning should concider information from staff at all levels and HR, but is most often decided on finally by senior managers in consultation with human resources management - (not the HR dept. which deals with day to day issues) Representativeness