Abstract: Methods and apparatus for controlling data permission are disclosed herein, and embodiments include generating a relational database that includes entity objects, corresponding user identifications and obligatory relationships of corresponding permission information. The obligatory relationships include time interval information. Some methods further include receiving a request to access an entity object, and the access request comprises identification of an accessing user and an accessing timestamp. The method further includes rendering the permission information of the corresponding entity object if the identification of the accessing user is substantially similar to the corresponding identification of the entity object and the accessing timestamp is within the time interval in response to the accessing request.

Abstract: Methods and apparatus for controlling data permission are disclosed herein, and embodiments include generating a relational database that includes entity objects, corresponding user identifications and obligatory relationships of corresponding permission information. The obligatory relationships include time interval information. Some methods further include receiving a request to access an entity object, and the access request comprises identification of an accessing user and an accessing timestamp. The method further includes rendering the permission information of the corresponding entity object if the identification of the accessing user is substantially similar to the corresponding identification of the entity object and the accessing timestamp is within the time interval in response to the accessing request.