Ship Self-Defense System (SSDS) is an open, distributed combat management system for surface ships designed to expedite the detect-to-engage sequence to defend against ASCMs. SSDS links and automates standalone sensors and weapon systems to provide the required combat reaction. A fiber optic local area network (LAN) connects ship sensors and weapon systems to:
While SSDS incorporates a high degree of automation through computerized embedded doctrine, the system also allows the commanding officer to maintain positive control over selected doctrine and weapons release.
ETI's systems are in use supporting this program, including examples below:
| SSDS | US Navy | ETI0001-2228 |
| SSDS | USMC | ETI0001-2228 |
| SSDS | US Navy | ETI0001-2228AA |
| SSDS | US Navy | ETI0001-2228AC |
| SSDS Shipboard Systems | US Navy | ETI0001-2229 |
| SSDS Shipboard Systems | USMC | ETI0001-2229 |
| SSDS Shipboard Systems | US Navy | ETI0001-2229AG |