Annex 1     
 1     Introduction    
 2     References
        2.1     Informative references     
 3     Types of monitoring       
        3.1     Status monitoring (test of physical signal conformance to standards and specifications)     
        3.2     Quality monitoring (assessment of perceptual quality for service contents)       
 4     Issues in operational monitoring
        4.1     Issues in status monitoring           
        4.2     Issues in quality monitoring         
 5     User requirements for operational monitoring   
        5.1     Common requirements for status and quality monitoring           
        5.2     Requirements for status monitoring         
        5.3     Requirements for quality monitoring       
        5.4     Requirements for monitoring equipment