NASA Abbreviations and Acronyms

1. DDI
   Discrete Digital Input
2. DDIS
   Data Depository Index System
3. DDL
   Data Definition Language
4. DDMS
   Dod Manager for Space Shuttle Support
5. DDN
   U.S. Defense Data Network
6. DDO
   Discrete Digital Output
7. DDP
   Design Development Plan
8. DDPC
   Digital Data Processing Center (complex)
9. DDPF
   Dedicated Display Processing Function
10. DDPS
    Digital Data Processing System
11. DDR
    Data Display and Review
12. DDR
    Detail Design Review
13. DDR
    Data Discrepancy Report
14. DDR
    Design Development Record
15. DDS
    Data Display System
16. DDS
    Detailed Design Specification
17. DDS
    Documentation Distribution System
18. DDT
    Design, Development, and Test
19. DDTE
    Design
20. DDTF
    Dynamic Docking Test Facility

Last updated: May 6, 2025 — Total entries: 14,020