Title :
Verification and validation of distributed flight critical systems
Author :
Hall, B. ; Driscoll, K. ; Schweiker, K.
Author_Institution :
Honeywell Int. Inc., Golden Valley, MN, USA
Abstract :
This paper describes Honeywell´s work on a NASA-sponsored multi-year program for verification and validation (V&V) of flight critical systems. The motivation for this work comes from the increasing complexity of integrated systems and the fact that there is often a gap between formal theory and real-world systems. For example, Byzantine fault tolerance is often overlooked in real-world systems, even though such failures have caused system-level failures [1], and the theory behind tolerating these failures has been well explored. The goals of this effort include: (1) providing advanced analytical, architectural, and testing capabilities to enable sound assurance of safety critical properties for distributed systems; (2) establishing a collection of reusable models supporting the validation and verification of a broad array of distributed systems, which enable effective engineering trade-offs to resolve debates about “best” design approaches; (3) improving open standards such as the Architecture Analysis Design Language (AADL); and (4) advancing the state-of-the-art in formal analysis and modeling tool chains.
Keywords :
aerospace computing; distributed processing; fault tolerant computing; formal specification; formal verification; safety-critical software; software architecture; system recovery; AADL; Architecture Analysis Design Language; Byzantine fault tolerance; NASA-sponsored multiyear program; analytical capability; architectural capability; design approach; distributed flight critical system; distributed system; engineering trade-off; failure tolerance; formal analysis; formal modeling tool chain; formal theory; integrated system complexity; open standards; real-world system; reusable model; safety critical property; system validation; system verification; system-level failure; testing capability; Analytical models; Fault tolerance; Fault tolerant systems; Protocols; Safety; Topology;
Conference_Titel :
Digital Avionics Systems Conference (DASC), 2012 IEEE/AIAA 31st
Conference_Location :
Williamsburg, VA
Print_ISBN :
978-1-4673-1699-6
DOI :
10.1109/DASC.2012.6382446