| 摘要 |
PROBLEM TO BE SOLVED: To provide a top-down design program and a storage medium capable of executing a top-down design method. SOLUTION: The top-down design system 100 is constituted of a monitor 102 to display a design model to be designed by a designer 101 and a CPU 103, etc. The CPU 103 details the design model 200 by generating an entity information object 201, a hierarchical relation information object 202 between entities, a hierarchical relation information object 204 between relations, an attribute information object 205 and a relational information object 206 between attributes.
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