A Location HierarchyA Location Hierarchy is a hierarchy of operating locations. More is a hierarchy of operating locationsA physical place where assets exist and where work can be performed. More.

Operating LocationsA location with a location type of OPERATING. More exist in a Location SystemA Location System is a set of operating locations joined together to form a hierarchy or a network. More. For each site there must be a hierarchical location system that is marked as the Primary, convention is that it is also called PRIMARY. 

In the Locations application an operating location can have only one parent, but several children. You build the location hierarchy top down. Although there is no limit to the number of levels in the hierarchy, there is practical limit of eight levels. When the hierarchy is displayed in the Location Drilldown, navigation becomes more difficult with an increase in the number of levels. 

When you create a new operating location, you use the action Associate Systems with Location, you select both the system and the parent location, this adds the location into the location hierarchy.

All locations in the location hierarchy must belong to the same SiteA structural element of a Maximo database that is used for data separation. More. The Location Hierarchy will be found in the Site based object LOCHIERARCHY. The LOCANCESTOR table will be built automatically, it consists of the location and its parent to the top of the hierarchy and is used to provide performance in the location drilldown.