It's really very simple and requires no expert knowledge or complex skills.
If those who know it die before passing on their skills, the chain of expert knowledge and experience is broken.
All that has to be added to such a system is the expert knowledge, usually in the form of rules.
Similarly, some pressure groups secure attention because of their expert knowledge.
"Come along with us, and give these boys the benefit of your expert knowledge."
Here, access to expert knowledge is provided in a compact form for students of the various building disciplines.
This is power which arises from the possession of expert knowledge.
Only from Prague did a request come for his expert knowledge.
Confidence, legal certainty and expert knowledge are crucial to this.
The contribution of people who have enormous practical experience and expert knowledge will be critical.