Continuously Improve
Keep on refining the knowledge !!
Once the intial build of your "Corporate Knowledge" has been achieved, one thing is certain.
Things WILL change. Embrace them !!
Some of these changes will come from external factors (e.g. Legislation).
Other changes and improvements will be suggested by your people who are working "on" the System or Processes.
Build upon, refine, document and share the new knowledge.