How long does it take to create a knowledge base?
We have found that an experienced knowledge engineer can create a knowledge base from a good source of knowledge (such as a book) at a rate of about 20 facts an hour. This rate depends on the quality and type of the source of knowledge. If the knowledge engineer has to obtain the facts by interviewing other people it will obviously take longer to build a knowledge base than if the facts are already collected in some form. If the knowledge engineer has to deal with multiple, conflicting sources of facts, time will also be spent verifying and consolidating the knowledge.