PURPOSE:To reduce computer resources required for trouble simulation by dividing at least one partial circuit of a logic circuit used for production of a trouble dictionary into partial circuit groups including plural basic elements and defining a trouble at the output terminal, the input terminal or the input/ output terminal. CONSTITUTION:The computer resources necessary for the trouble simulation are proportional to the number of elements and trouble definitions. A circuit dividing means 1 divides at least one partial circuit of a logic circuit used for production of a trouble dictionary into plural partial circuits including plural basic elements. The a trouble defining means 2 defines a trouble at the input terminal, the output terminal or the input/output terminal. Thus the number of trouble definitions are decreased and therefore the computer resources can be reduced.
展开▼
