Abstract: The privilege information management system stores a group tree configured with group nodes each representing a group configured with a member enabled to use a privilege, stores an object tree configured with object nodes each representing a target object to be used with a privilege, stores, in a releasable manner, privilege-valid link information indicating a connection between an arbitrary group node and an arbitrary object node in a privilege-valid mode, and regarding a first group node of the group nodes and a first object node of the object nodes connected by the privilege-valid link information, grants a privilege to use a target object of the first object node and a subordinate object node if there are any under the first object node to a member belonging to the first group node and a subordinate group node if there are any under the first group node.

Abstract: A member information management system stores data of second stage groups H and I and second stage groups J and K and data of members belonging to these second stage groups in a data protection area corresponding to each of a plurality of first stage groups A and B. The data of the second stage groups H, I, J, and K includes presentation data of a registration form of the second stage group and contents data for the second stage group. The member data includes specific data for specifying the second stage group H, I, J, or K. When a login operation of an administrator is successfully authenticated by administrator authentication information stored in an administrator protection area corresponding to the first stage groups A and B, browsing of predetermined data in all protection areas of the plurality of first stage groups A and B is permitted.

Abstract: An event information management system is configured to include data of event information configured to include data of event theme information and data of individual event information, store, in an event theme table storage unit 321, data of the event theme information including at least an event theme name, and associate data of the individual event information including at least an event period with the event theme information and also store data of the individual event information separately from the event theme information in an individual event table storage unit 325. When individual events which are of the same type and held repetitively are managed, hardware resources are utilized efficiently and management work is improved in efficiency and flexibility.

Abstract: The privilege information management system stores a group tree configured with group nodes each representing a group configured with a member enabled to use a privilege, stores an object tree configured with object nodes each representing a target object to be used with a privilege, stores, in a releasable manner, privilege-valid link information indicating a connection between an arbitrary group node and an arbitrary object node in a privilege-valid mode, and regarding a first group node of the group nodes and a first object node of the object nodes connected by the privilege-valid link information, grants a privilege to use a target object of the first object node and a subordinate object node if there are any under the first object node to a member belonging to the first group node and a subordinate group node if there are any under the first group node.

Abstract: A member information management system stores data of second stage groups H and I and second stage groups J and K and data of members belonging to these second stage groups in a data protection area corresponding to each of a plurality of first stage groups A and B. The data of the second stage groups H, I, J, and K includes presentation data of a registration form of the second stage group and contents data for the second stage group. The member data includes specific data for specifying the second stage group H, I, J, or K. When a login operation of an administrator is successfully authenticated by administrator authentication information stored in an administrator protection area corresponding to the first stage groups A and B, browsing of predetermined data in all protection areas of the plurality of first stage groups A and B is permitted.