ENTITY sticky_note its_executable : executable; its_placement : OPTIONAL axis2_placement_3d; its_workpiece : OPTIONAL workpiece; its_text: STRING; END_ENTITY; ENTITY Tracked_tolerance its_tolerance : tolerance; its_previous_tolerance LIST OF tracked_tolerance; END_ENTITY; ENTITY Tracked_datum its_datum : datum; its_previous_datum tracked_datum; END_ENTITY; ENTITY Tracked_finish its_finish : surface_finish; its_previous_finish tracked_surface_finish; END_ENTITY;