PURPOSE: To control an access right by names by performing access processing to a file according to the access right corresponding to each name when performing access corresponding to that name.
CONSTITUTION: When the display command of a substance file (ORG file) 1000 is inputted, an access processing part 300 judges whether the name of the accessed file shows an access right storage part file (AS file) or not. When the name of the accessed file shows the AS file, it is judged whether the access name is (a) or (b). In the case of (a), the display command is executed according to the presence of a read right while using the access right stored in an AS file a2100. Therefore, the ORG file 1000 can be displayed. When the access file name is (b), on the other hand, the display command is executed without any read right while using the access right stored in an AS file b(2200). Therefore, the ORG file 1000 can not be splayed.
IWABUCHI YOICHI
YABE TOSHIO
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