Improving Documentation with Learning Techniques 
It is important to recognize that because we all differ in our experience and background the learning process is different for each of us. Consequently, in our documentation we should by to put users on an equal footing by, for example, clearly and exactly defining terms we use and including a glossary. We can also put everyone on an equal footing by using 'bridges to understanding,' from analogies, examples, and metaphors to mnemonic strategies. For overall comprehension, we can employ 'frameworks,' from conceptual maps to road maps, that give patterns of meaning to what we say.
Livingston, Dick. STC Proceedings (1993). Articles>Documentation>Instructional Design>Glossary