Which of the following items is NOT a component of a knowledgebased system (KBS)?

A.
Knowledge base

B.
Procedural code

C.
Interface between the user and the system

D.
Inference Engine

Explanation:
Procedural code in a procedural language implies sequential execution of instructions based on the
von Neumann architecture of a CPU, Memory, and Input/Output device. Variables are part of the
sets of instructions used to solve a particular problem and, thus, the data are not separate from the
statements. Such languages have control statements such as goto, ifthenelse and so on. The
program execution is iterative and corresponds to a sequence of state changes in a state machine.
*Answer knowledge base, refers to the rules and facts of the particular problem domain. *The
inference engine takes the inputs to the KBS and uses the knowledge base to infer new facts and to
solve the problem. *Answer “Interface between the user and the system” refers to the interface
between the user and the system through which the data are entered, displayed, and output.