| 1 | Value list A coded or non coded list of values. |
| 2 | Name value in list A specific name value in a list. |
| 3 | Footnote Explanatory note. |
| 4 | Code value A specific code value in a value list. |
| 5 | Data set structure A data set structure definition. |
| 6 | Statistical concept A statistical concept. |
| 7 | Array segment presentation The way the array is presented in the segment containing the array data. |
| 8 | Data set scope The scope definition of a data set. |
| 9 | Message number assigned by party The identity given to a message by a specified party. |
| 10 | Linked source tree structure level A level in a tree structure that is the source level in a link. |
| 11 | Linked source tree structure A structure containing two or more objects in a hierarchy that is the source structure in a link. |
| 12 | Linked source item An item that is the source item in a link. |
| 13 | Linked target tree structure level A level in a tree structure that is the target level in a link. |
| 14 | Linked target tree structure A structure containing two or more objects in a hierarchy that is the target structure in a link. |
| 15 | Linked target item An item that is the target item in a link. |
| 16 | Work breakdown structure The index used to identify the reporting structure references assigned to work tasks. |
| 17 | Organization breakdown structure The index used to identify the reporting structure references that indicate who is responsible for getting work done and who is performing work. |
| 18 | Cost element structure The index used to identify the reporting structure references assigned to cost elements or resources used to perform work. |
| 19 | Coded attribute An attribute that is coded. |
| 20 | Uncoded attribute An attribute that is uncoded. |
| 21 | Package The object being maintained is a package. |
| 22 | Tool The object being maintained is a tool. |
| 23 | Equipment The object being maintained is a piece of equipment. |