| ACS | Automated Case Support |
| CIO | Chief Information Officer |
| CJIS | Criminal Justice Information Services |
| CLEA | Criminal Law Enforcement Application |
| CSC | Computer Sciences Corporation |
| FBI | Federal Bureau of Investigation |
| FEDSIM | Federal System Integration and Management Center |
| FICMS | Federal Investigative Case Management System |
| FIDS | Federal Intelligence Information Reports Dissemination System |
| FITUP | Federal Bureau of Investigation's Information Technology Upgrade Plan |
| FOC | Full Operational Capability |
| GAO | Government Accountability Office |
| GSA | General Services Administration |
| IDW | Information Data Warehouse |
| IIIA | Integrated Intelligence Information Application |
| IIR | Intelligence Information Report |
| IPC | Information Presentation Component |
| IOC | Initial Operational Capability |
| ISI | Information Sharing Initiative |
| IT | Information Technology |
| ITIM | Information Technology Investment Management |
| IV&V | Independent Verification and Validation |
| JAD | Joint Application Development |
| MPMOU | Major Project Management Oversight Unit |
| OIG | Office of the Inspector General |
| RIA | Reports on Investigative Activity |
| RFI | Request for Information |
| RFP | Request for Proposals |
| SAIC | Science Applications International Corporation |
| TA | Telephone Application |
| TNC | Transportation Network Component |
| UAC | User Application Component |
| VCF | Virtual Case File |
| WAN | Wide Area Network |