Integrated CNI terminal software architecture

The author describes the current architecture and features of the integrated communication-navigation-identification (CNI) family of the integrated avionic systems and how they apply to the Pave Pillar preferred system architecture for the next generation of avionics. The key features are a hierarchically distributed design from the avionics authority (pilot, mission tape/disk, or mission data computer) down through the CNI subsystem and into the line-replaceable modules, infusion of expert-system technology into the integrated built-in test and maintenance segment, and an integration of the resource management and integrated built-in test and maintenance segments at each level of the hierarchy to effect efficient dynamic reconfiguration of the common modules of these systems.<>