SDL-2010: Background, Rationale, and Survey

摘要

This invited paper concerns a revised version of the ITU-T Specification and Description Language standard, which is scheduled to be consented for approval by ITU-T during 2011. In this document and ongoing ITU-T work, the revised version is called SDL-2010. The current standardized (or in ITU-T terminology Recommended) version at the time of initially writing this paper (April 2011) was called SDL-2000. The paper gives some historical background on the development of the language. The paper includes rationale for the update of the language and the revised organization of the language standard. After the history, there is a description of the new organization followed by some details of the changed feature set of a revised version SDL-2010 compared with SDL-2000. The paper concludes with a snapshot of the status of the SDL-2010 standard.