Knowledge Management Principle Seven of Seven (Rendering Knowledge by David Snowden)
We always know more than we can say, and we will always say more than we can write down. This is probably the most important. The process of taking things from our heads, to our mouths (speaking it) to our hands (writing it down) involves loss of content and context. It is always less than it could have been as it is increasingly codified.
Authoring a topic map always involves loss of content and context.
The same loss of content and context has bedeviled the AI community for the last 50 years.
No one can control the loss content and context or even identify it ahead of time.
Testing topic maps on users will help bring them closer to user expectations.