RECOMMENDATION ITU-R BT.1369 … BASIC PRINCIPLES FOR A WORLDWIDE COMMON FAMILY OF SYSTEMS FOR THE PROVISION OF INTERACTIVE ...
1 Introduction
2 Scope
3 Bibliography
4 Terms and definitions
5 Abbreviations
6 Interactivity and the role of interaction paths
7 Reference model for the interaction channel
8 Specification of the broadcast channel
9 Specification of the interaction channel
    9.1 Interaction channel transport mechanisms
    9.2 Interaction channel characteristics
10 Management functions
APPENDIX I … Technical parameters under study