Abstract: Described is a technique for distributing information about one or more groups of objects in a plurality of nodes. A first portion of group information is stored on each of said plurality of nodes. The first portion includes information about defined groups and associated group hierarchy information. A second portion of the group information is stored on each of the plurality of nodes. The second portion of group information stored on each of said plurality of nodes identifying which objects included in said one or more groups are defined at said each node.

Abstract: An adjustable toilet mounted on the wall of a bathroom. The toilet is raised and lowered by an electrically driven motor. By raising and lowering the toilet, the elderly, the handicapped, and children are aided in the use of the toilet. The toilet provides electrical limit switches for stopping the motor at a desired height above the bathroom floor.