| Id | Concept | Page | Figure | Section | Supeclass | Status | Comment | |
| 1 | namespace | 34 | 8.6 | Namespaces | set | |||
| 2 | attributive namespace | 35 | 8.6 | Namespaces | namespace | |||
| 3 | vocabulary namespace | 35 | 8.6 | Namespaces | namespace | |||
| 4 | reference scheme | 36 | 8.7 | Reference Schemes | ||||
| 5 | conceptual scheme | 39 | 8.8 | Conceptual Schemas and Models | ||||
| 6 | fact model | 39 | 8.8 | Conceptual Schemas and Models | ||||
| 7 | set | 43 | 8.9 | Elementary Concepts | thing | |||
| 8 | body of shared meanings | 133 | 11.1 | Bodies of Shared Meanings | ||||
| 9 | body of shared concepts | 134 | 11.1 | Bodies of Shared Meanings | ||||
| 10 | vocabulary | 135 | 11.1 | Vocabularies and Terminological Dictionaries | set of designations and fact type forms | |||
| 11 | terminological dictionary | 135 | 11.1 | Vocabularies and Terminological Dictionaries | set of representation | |||
| 12 | business vocabulary | 135 | 11.1 | Vocabularies and Terminological Dictionaries | vocabulary | |||
| 13 | community | 133 | 11.1 | Communities | ||||
| 14 | subcommunity | 133 | 11.1 | Communities | role | |||
| 15 | communication content | 156 | 11.7 | Business Content of a Communication | ||||
| 16 | document content | 156 | 11.7 | Business Content of Communication | representation | synonym | ||
| 17 | message content | 156 | 11.7 | Business Content of Communication | representation | synonym | ||
| 18 | rulebook | 157 | 11.7 | Sets of Business Representation | ||||
| 19 | body of shared guidance | 160 | 12.1 | Guidance | ||||