[1] Submission Delivery Protocol (in X.411)
[2] Site Data Processor (->“IEEE Standard Dictionary”) (->“NASA Acronym List”)
[3] Service Delivery Point
[4] Specialized Data Point (2.))
[5] Shuttle Data Processor (->“NASA Acronym List”)
[6] Software Development Plan (->“NASA Acronym List”)
[7] Standard Data Processor (->“NASA Acronym List”)
[8] Sandpoint, AK, USA -internationale Fughafen-Kennung
[9] Session Description Protocol