Knowledge base domain

In Figure 2.6, the slips/mistakes distinction is further elaborated by relating it to the Rasmussen SRK classification of performance discussed earlier. Slips can be described as being due to misapplied competence because they are examples of the highly skilled, well practiced activities that are characteristic of the skill-based mode. Mistakes, on the other hand, are largely confined to the rule and knowledge-based domains. 

Definition 2 Knowledge-based systems are computer programs that encode symboHc knowledge about domains and tasks, and solve problems by manipulating this knowledge using quaHtative techniques. 

For each of the 500 or so different domain structures that have so far been observed, we might at best know about a dozen of these different possible sequences. It is not trivial to recognize the general sequence patterns that are common to specific domain structures from such a limited knowledge base. 

An expert system is a knowledge-based system that emulates expert thought to solve significant problems in a particular domain of expertise. [1]... 

The knowledge base is a storehouse of facts, rules, and heuristics that relate to the domain in which the system provides advice. As far as possible, it contains everything that might be useful to the ES in solving problems. 

This is useful, albeit basic, information for an ES working in the domain of sick cars. If you are employed as a car mechanic, you are not likely to benefit from, or even be interested in, the presence within the knowledge base of details about how lead sulfate batteries degrade with age and how any diminution in concentration of the active materials in the battery can be related through the Nernst equation to a reduction in its voltage. In the context of car repair, all that you need to know is that the battery is dead and the car will not start, so it will need replacing or recharging. 

Even though the domain in which an ES is applied may be clearly defined, the contents of the knowledge base may extend a little beyond the immediate... 

Inter-firm collaboration, by linking knowledge domains across organizations and across institutional environments, enables firms to enhance their creativity and to grow organically. Resource-based view and knowledge-based view perspectives cite inter-firm collaboration... 

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