Patent ID: 7856604

Claim:
A non-transitory computer readable storage medium containing instructions which when executed implement a system for operation and visualization of multiple content filters, comprising: instructions for a plurality of user interfaces UI 1 , UI 2 , . . . , UI n , used for setting parameters of corresponding content filters CF 1 , CF 2 , . . . , CF n that filter content from a catalogue of content, each content filter CF k having a lock status of being in a locked or an unlocked state, and each user interface UI k , while being used to set the parameters of content filter CF k , indicating the content that is filtered from the catalogue by only the content filters other than CF k that are locked; instructions for a lock processor for setting and clearing the lock statuses of the content filters by means of lock controls; wherein each user interface UI k indicates an alphanumeric string dependent upon the lock statuses of the content filters other than CF k ; and the alphanumeric string is a statistic of the catalogue as filtered by the content filters other than CF k that are locked.