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Finding and fixing errors in the knowledge base Finding and fixing errors in the knowledge base ................................................................................................................................................................................................................................................... Overview To find and fix errors in a knowledge base, examine the flow of control and the values generated by different objects. Using the debugger, you can suspend knowledge base execution on objects where you suspect errors might occur and step through those objects one statement at a time. You can also examine the execution trace, the call stack, and the parameter, instance, and the function values. To suspend knowledge base execution on the objects that you think might contain errors, set breakpoints at the beginning of the objects. A breakpoint is a place in the knowledge base where execution is suspended. The Object editor displays. The property windows in which the statements exist are displayed. You can continue the execution in the object one statement at a time. & For more information: see “Suspending execution” on page 9-8 see “Continuing execution” on page 9-10 see “Displaying an object” on page 9-12 see “Displaying parameter, instance, and function values” on page 9-14 see “Displaying the execution trace” on page 9-15 see “Displaying the call stack” on page 9-18 see “Changing object properties” on page 9-19 see “Debugging objects in which errors most commonly occur” on page 9-20 Debugging Knowledge Bases 9-7
