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Replacement of the display site portion of Canada's enroute
air traffic control system. System provided controllers with a display
of aircraft position, weather and flight plan data. System's hardware
architecture made extended use of microprocessors as building blocks
to create a fault-tolerant hierarchy of (up to 175) processors partitioned
into functional roles and tied together by multiprocessor buses, LANs
and communication links. Participated in the early requirements analysis
and system design tradeoffs phases of the project. Developed the software
architecture and algorithms that allows the system to detect failures
and reconfigure itself without affecting air traffic control operations.
Wrote functional specifications for system's fault tolerant capability;
defined software interfaces; and consulted with the group that implemented
the design.
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