DocumentCode
1746918
Title
Onboard guarded software upgrading: motivation and framework
Author
Tai, Ann T. ; Alkalai, Leon ; Chau, Savio N.
Author_Institution
IA Tech. Inc., Los Angeles, CA, USA
Volume
5
fYear
2001
fDate
2001
Firstpage
2421
Abstract
The goal of the guarded software upgrading (GSU) framework is to minimize mission performance loss due to onboard software upgrading activities and that due to system failure caused by residual faults in an upgraded version. We exploit inherent system resource redundancies as the means of fault tolerance to meet the development cost and onboard resource constraints. Furthermore, we devise a message-driven confidence-driven protocol to facilitate effective and efficient error containment and recovery
Keywords
aerospace computing; software fault tolerance; system recovery; development cost; error containment; fault tolerance; inherent system resource redundancies; message-driven confidence-driven protocol; mission performance loss; onboard guarded software upgrading; onboard resource constraint; recovery; residual faults; system failure; Costs; Error correction; Fault tolerant systems; Middleware; Performance loss; Protocols; Redundancy; Software performance; Space technology; Space vehicles;
fLanguage
English
Publisher
ieee
Conference_Titel
Aerospace Conference, 2001, IEEE Proceedings.
Conference_Location
Big Sky, MT
Print_ISBN
0-7803-6599-2
Type
conf
DOI
10.1109/AERO.2001.931201
Filename
931201
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