Concept analysis is a powerful tool for making systematic terminologies, but this systematic approach has its own weaknesses as well. TSK's vocabularies may be difficult to use, and perhaps the biggest reason for this is that definitions are not independent. According to terminological principles the characteristics of a related concept defined elsewhere in a vocabulary must not be repeated. In practice, this means that in order to understand one definition the reader has to check several other definitions in the vocabulary. Kalliokuusi thinks that the requirement to avoid unnecessary repetition in definitions may be discarded, i.e. the characteristics of a related concept can be placed or its definition can be written almost in full in another definition.
Notes supplementing a definition are also important.
Such additional information that is relevant to understanding a concept may be expressed more freely in notes. In some cases additional information on different viewpoints may bring clarity. For many years Kalliokuusi took part in the preparation of standards and in the meetings of work groups. She lectured in both of them with professor Krista Varantola on user-sensitive lexical resources. Nordic Nordterm cooperation is important for TSK as an organization and for most terminologists personally.