| default_unit | Unit of measure used for the item or quantity, for example each, kg, m, liter, or another enterprise-specific unit. | string | Datatype | False | False | 0..1 | - | False | False |
| make_buy | Indicates whether the part-like item is made, bought, subcontracted, supplied, or otherwise sourced according to the relevant view. | string | Datatype | False | False | 0..1 | - | False | False |
| windchill_container | Windchill product, library, project, context, or container in which the object is managed. | string | Datatype | False | False | 0..1 | - | False | False |
| windchill_number | Native Windchill part number or object number. This is distinct from the semantic id and reflects the identifier used inside Windchill. | string | Datatype | False | False | 0..1 | - | False | False |
| windchill_object_type | Native Windchill type or subtype, for example WTPart, part subtype, manufacturing part subtype, or another modeled type. | string | Datatype | False | False | 0..1 | - | False | False |
| windchill_view | Windchill view or structural perspective, for example Design, Manufacturing, Service, or another organization-specific view. | string | Datatype | False | False | 0..1 | - | False | False |
| description | Human-readable description. | string | Datatype | False | False | 0..1 | IdentifiedThing | False | False |
| id | Stable identifier of the object. | uriorcurie | Datatype | True | False | 1..1 | IdentifiedThing | False | True |
| name | Human-readable name. | string | Datatype | False | False | 0..1 | IdentifiedThing | False | False |
| editing_state | Editing, authoring, or change state of the item or structure, for example draft, checked out, checked in, under change, locked, frozen, or released. | string | Datatype | False | False | 0..1 | PartItem | False | False |
| item_version | Version, revision, iteration, or other version label of the part-like item. This slot is shared by WindchillPart, ProductTreeItem, AssemblyTreeItem, and AsBuiltItem through PartItem. | string | Datatype | False | False | 0..1 | PartItem | False | False |
| lifecycle_state | Lifecycle state of the item or structure, for example In Work, Released, Frozen, Obsolete, Completed, Accepted, or another organization-specific state. | string | Datatype | False | False | 0..1 | PartItem | False | False |
| external_id | Native identifier of the object in the source tool. | string | Datatype | False | False | 0..1 | ToolObject | False | False |
| source_system | Concrete source system or repository. | string | Datatype | False | False | 0..1 | ToolObject | False | False |
| tool_name | Name of the tool where the object is managed. | string | Datatype | False | False | 0..1 | ToolObject | False | False |