CCSDS 508.0-R-1, Conjunction Data Message (Red Book, Issue 1 ...

DRAFT CCSDS RECOMMENDED STANDARD FOR CONJUNCTION DATA MESSAGES4 CDM CONTENT/STRUCTURE IN XML4.1 DISCUSSION—THE CDM/XML SCHEMAThe CDM/XML schema will be available on the SANA Web site. SANA is the registrar forthe protocol registries created under CCSDS.The CDM XML schema explicitly defines the permitted data elements and values acceptablefor the XML version of the CDM message.The location of the CDM/XML schema will be:http://sanaregistry.org/r/ndmxml/ndmxml-1.0-cdm-1.0.xsdWhere possible this schema uses simple types and complex types used by the constituentschemas that make up NDMs (AEM, APM, OEM, OMM, OPM, TDM). 14.2 CDM/XML BASIC STRUCTURE4.2.1 Each CDM shall consist of a and a .4.2.2 The CDM body shall consist of exactly two segment constructs.4.2.3 Each shall consist of a / pair, as shown in figure 4-1.Figure 4-1: CDM XML Basic Structure1 An example CDM/XML schema is currently referenced in annex F of this document. Once this document is finalized, annex F will beremoved. This will allow updates of the schema on the Web site without correspondingly updating the CDM document.CCSDS 508.0-R-1 Page 4-1 March 2012