MULTI-BOARD DESIGN APPARATUS, MULTI-BOARD DESIGN METHOD, PROGRAM AND COMPUTER-READABLE RECORDING MEDIUM

In order to always maintain connection relationships between substrates of the multi-board, a multi-board design apparatus for designing a multi-board comprising a plurality of substrates which are electrically connected is made to have: setting means by which a designer sets connection information indicating a connection relationship between each substrate configuring the multi-board; modification information detection means by which, when editing in an arbitrary substrate configuring the multi-board, modified content resulting from the editing is detected as modification information; and connection information modification means which, on the basis of the modification information which has been detected by the modification which has been detected by the modification information detection means, modifies the connection information which has been set in the setting means so as to maintain electrical connection relationships between each of the substrates in the multi-board.