| DisplayName | ID | Parent | Accessibility |
| Knowledge Article Type | System.Knowledge.ArticleTypeEnum | | Public |
| Knowledge Article Category | System.Knowledge.CategoryEnum | | Public |
| Knowledge Article Status | System.Knowledge.StatusEnum | | Public |
| Archived | System.Knowledge.StatusEnum.Archived | System.Knowledge.StatusEnum | Public |
| Draft | System.Knowledge.StatusEnum.Draft | System.Knowledge.StatusEnum | Public |
| Published | System.Knowledge.StatusEnum.Published | System.Knowledge.StatusEnum | Public |
| Knowledge Article Tag | System.Knowledge.TagEnum | | Public |