It is a difficult task and a bit intimidating at first. Some have been anxious or suspicious about new technology. Other domain experts are reluctant to share their expertise. Some fear that their roles would be diminished after sharing their expertise. This anxiety is not warranted.
Domain experts know vastly more than can be put into expert systems.
The systems are difficult but very interesting, even fun, to build. The systems will save experts from having to answer common problems and give them time to work on new problems. Each Expert Advisor still presents new challenges. New combinations of technical, legal, and compliance information must be seamlessly assembled, so that the finished Advisor provides answers businesses can count on to be in compliance with the law, and OSHA can count on to produce safe and healthful working conditions. The best proof that it can be done are the excellent interactive expert Advisors created by the Office of the Assistant Secretary of Policy of the Department of Labor on a variety of Labor laws.