! width=30% | Name !! width=20% | Data type !! Comment
|-
| '''CTS''' (CTS) || {{PropertyType|Date/Time|DateTime}} || [[Creation time stamp]]
|-
| '''UTS''' (UTS) || {{PropertyType|Date/Time|DateTime}} || [[Update time stamp]]
|-
| '''Version''' (VERSION) || {{PropertyType|Integer|Int}} || [[Version number]]
|-
| '''Left target''' (LEFTUID) || {{PropertyType|Guid|Guid}} || Owner object
|-
| '''Right target''' (RIGHTUID) || {{PropertyType|Integer|Integer}} || Child object
|}
[[Category:System MetaClasses]]
[[Category:Relation Data]]