| 摘要 |
PURPOSE: A method for forming a containment relation between objects generated from an identical class is provided to reduce a definition of a plurality of classes, thereto reduce manpower and time by generating an object having a containment relation in one class. CONSTITUTION: Each object(21, 22, 23, 24, 25) is generated from one class(20). In addition, a containment relation is indicated according to characteristic of each object. In case that an object is generated from the class(20) An object relation is formed by registering how the object was related to an object generated from an identical class before in a specific attribute.
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