| Traditional approach 1 ("intellectual") | "Intellectual" | "management | Facet analysis | free text | Information Retrieval b) algorithms | Bibliometrics | User based/ cognitive | Internet, xml | Domain analysis |
| Traditional approach 2 ("management perspective") | |||||||||
| Facet analysis | |||||||||
| Information Retrieval a) free text based systems | |||||||||
| Information Retrieval b) algorithms | |||||||||
| Bibliometrics | |||||||||
| User based/ cognitive | |||||||||
| Internet, xml | |||||||||
| Domain analysis |