Data security in a semantic data model

A system for securing data comprising:

• a first data model for modeling semantically related target data resources;
• a second data model for modeling access privileges;
• a database for storing the target data resources;
• and
• a security access component for granting access to data based on the access privileges.

A method for providing access to a user to secured data in a system storing the secured data in a semantic data model comprising:

• authenticating the user as an authorized user of the system;
• receiving a request from the user for the secured data in the semantic data model;
• analyzing the request;
• determining whether the authenticated user is entitled to the requested data.

A computer readable medium containing computer-executable instructions for performing a method for defining security for a data model, comprising:

• creating a data model for semantically related data, the data model having a propositional structure with a finite set of data relations;
• specifying data structure security requirements for the semantically related data;
• and
• restricting access to the semantically related data based on the data structure security requirements.