The advanced avionics subsystem technology demonstration program

The Navy´s Advanced Avionics Subsystem Technology (AAST) Fault Tolerant program is clarifying the Navy´s fault tolerant avionics specifications methods and acceptance tests. The goal of the program will be clarify the Specification and Statement of Work language needed in future procurements and to demonstrate fault tolerant validation tools on an avionics design. A set of tool features will then be developed that spans the needs of fault tolerant computer system design from early concept studies to full scale production and operational support, both hardware and software. The paper will give an overview of the AAST Fault Tolerant Demonstration and focus on two tools that are being used in the demonstration: FERRARI-a software fault injector that will be used to validate the fault tolerance of the Common Integrated Processor (CIP), the F-22 Mission Processor and GRIND, a concept evaluation tool that will be used to evaluate the overall CIP architecture