Computer system with access control mechanism
First Claim
1. A computer system for controlling access to data to be used in common by multiple users, comprising:
- data storage for storing said data in common;
an access management table including access management data to control an access right to said data in common; and
control means for updating said access management data in said access management table, in response to communication, in which reference information to said data in common are included, from a first user who is authorized to grant an access right to said data to a second user.
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Accused Products
Abstract
According to the present invention, a computer system with a mechanism for controlling the access rights for data to be used in common by multiple users, which includes: data storage for storing the data in common; an access management table including access management data for controlling access rights for the data in common; and control means for updating the access management data in response to communication from a user who is authorized to grant access rights. Included in the data in the access management table is information for data to be accessed, identification information for a user who has been granted access rights, access level information and identification information for the user who grants the access rights.
21 Citations
8 Claims
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1. A computer system for controlling access to data to be used in common by multiple users, comprising:
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data storage for storing said data in common;
an access management table including access management data to control an access right to said data in common; and
control means for updating said access management data in said access management table, in response to communication, in which reference information to said data in common are included, from a first user who is authorized to grant an access right to said data to a second user. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A communication system comprising:
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a computer system for controlling access to data to be used in common by multiple users, comprising;
data storage for storing said data in common;
an access management table including access management data to control an access right to said data in common; and
control means for updating said access management data in said access management table, in response to communication, in which reference information to said data in common are included, from a first user who is authorized to grant an access right to said data to a second user; and
a plurality of user terminals for communicating with said computer system.
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Specification