A management system (A) assigns a priority to each of a plurality of elements matching a predetermined condition based on management information including information representing a relation among elements and information representing a metric of each of the elements, (B) displays a visual representing a visual priority given to each of element based on one or more priorities given in (A), (C) when receiving selection of the elements from the visual displayed in (B), selects a higher or lower level layer of a layer containing a selected element, and selects one or more elements related to the selected element and contained in the selected layer, based on a level relation among a plurality of layers and a correlation between element types and layers, and (D) performs (A) with the one or more elements selected in (C) treated as the one or more elements matching the predetermined condition.