A group whose members share a rank or kind. From the Roman summons - a class was first the people called out together.
Latin classis (a class, division, fleet, army); from calare (to call, proclaim); a major grouping within a phylum
The fourth Linnaean rank. Major groupings within a structural pattern. Eight classes including CouncilEntityClass, UserVesselClass, BridgeEntityClass, and UI classes like ContainerClass, GridClass, FlexClass.