A computer scans a DITA library to identify DITA topic files. The computer then determines whether the identified DITA file has a concept, task, or reference scheme. Based on determining that the identified DITA topic file has a concept scheme, the computer generates a subject taxonomy. Based on determining that the identified DITA topic file has a task scheme, the computer generates a navigation taxonomy. Based on determining that the identified DITA topic file has a reference scheme, the computer generates a command relational taxonomy. Based on the generated subject, navigation, and command relational taxonomies, the computer generates a DITA file relationship table based on the contextual taxonomy density of the aforementioned taxonomies.