- AIS
- Automated Information Systems
- AsPIRE™
- Automated system of Personnel Information Requirements for Employees™
- C&A
- Certification and Accreditation
- CCNA
- CISCO Certified Network Associate
- CI
- Content Inspection
- CIS
- Collaborative Information Systems
- CISSP
- Certified Information Systems Security Professional
- COE
- Common Operating Environment
- COTS
- Commercial-off-the-Shelf
- DARPA
- Defense Advanced Research Projects Agency
- DCID
- Director of Central Intelligence Directive
- DII
- Defense Information Infrastructure
- DITSCAP
- Defense Information Technology Security Certification and Accreditation Process
- DoD
- Department of Defense
- FDB™
- Financial Database™
- FM
- Financial Management
- GUI
- Graphical User Interface
- ISO
- International Organization of Standardization
- ISS
- Information System Security
- IT
- Information Technology
- LAN
- Local Area Network
- MAC
- Mandatory Access Control
- MCSE
- Microsoft Certified Systems Engineer
- MSL
- Multiple Secure LANs
- MTI
- Moving Target Indicator
- NISPOM
- National Industrial Security Program Operating Manual
- PAR
- Program Access Request
- PIA
- Program Indoctrination Agreement
- PPBS
- Planning, Programming, Budgeting System
- PL3
- Protection Level 3
- PL4
- Protection Level 4
- PrOMIS™
- Program Office Management Information System™
- RCIS
- Relational Collaboration Information Systems
- SAP
- Special Access Program
- SAR
- Special Access Required
- SARMIS™
- Special Access Required Management Information System™
- SCI
- Sensitive Compartmented Information
- SSAA
- System Security Authorization Agreement
- ST&E
- Security Test and Evaluation
- TCO
- Total Cost of Ownership
- TCSEC
- Trusted Computer System Evaluation Criteria
- TII™
- Trusted Information Infrastructure
- TP™
- Trusted PrOMIS™
- VPN
- Virtual Private Network
- WAN
- Wide Area Network
- WBS
- Work Breakdown Structure