Backward chaining is
A) a strategy for searching the rule base in an expert system that begins with information entered by the user.
B) the programming environment of an expert system.
C) a method of organizing expert system knowledge into chunks.
D) a strategy for searching the rule base in an expert system that begins with a hypothesis.
E) a programming algorithm used to create a virtual world using VRML.
Q. 2Expert systems are expensive and time consuming to maintain because
A) their rule base is so complex.
B) they rely on equipment that becomes outdated.
C) their rules must be reprogrammed every time there is a change in the environment, which in turn may change the applicable rules.
D) only the person who created the system knows exactly how it works, and may not be available when changes are needed.
E) it is difficult to program at this level of complexity without introducing software bugs.
Q. 3Transferring data from a legacy system to the new system would be defined by which category of system design specifications?
A) input
B) database
C) manual procedures
D) conversion
E) implementation
Q. 4Systems design
A) describes what a system should do to meet information requirements.
B) shows how the new system will fulfill the information requirements.
C) identifies which users need what information, where, when and how.
D) is concerned with the logical view of the system solution.
E) identifies the technology to be used in the system.
Q. 5To avoid the cost and uncertainty of moving information across national boundaries, most multinational firms
A) maintain a master database at their head offices.
B) develop a master system that meets the standards of all the countries concerned.
C) use microwave satellite transmission to move data.
D) develop separate systems within each country.
E) use a cloud-based service.
Q. 6Fuzzy logic is a type of
Q. 7An inference engine is
A) a strategy for searching the rule base in case-based reasoning.
B) the programming environment of an expert system.
C) a method of organizing expert system knowledge into chunks.
D) a strategy used to search through the rule base in an expert system by forward chaining or backward chaining.
E) a programming algorithm used to create a virtual world using VRML.
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