A highly reliable facility evaluation information (rating information) that is free of arbitrary ratings. A server system includes a facility rating information creation and updating unit that grants a rating with regard to a facility to be rated on the basis of parking information. The parking information is obtained by assessing whether the present position of a mobile body, which is being carried together with a vehicle, has been parked in the area of the facility to be rated whereat parking is possible. A facility rating provision unit that outputs the rating regarding to the facility to be rated, which has been granted by the facility rating information creation and updating unit.