1. Taxonomy is used to:

• a) Classify ("Stamping") documents (text, image, video, sound);

• b) Identify people's specialization ( responsibilities );

• c) Identify competencies (responsibilities) of entities ( and sub-divisions of entities );

• d) Classify (catalog) questions and answers;

• e) Identify targets for incoming mail, comments and opinions [ depending on b and c ].

2. A term (vocabulary item) must be present in the taxonomy if and only if indispensable for one of the above functions.

3. Apart from the terms present in the taxonomy (and which have a unique place in that taxonomy), others might exist that will function as Keywords, and that might be associated to one or more terms of the taxonomy, at any level. These keyword terms are used to:

• a) Enrich the system's glossary;

• b) Ease cross-referencing between documents and answer segments in order to answer "non-anticipated" questions;

• c) Solve multi-interpretation conflicts (for example, interpretation dependent from context).