Failure Isolation vs System Integration
Implement software partitioning and independent power domains to contain faults within shared-resource architectures before any failure propagates system-wide.
CyberTRIZ analysis · Space contradiction RMA011 · one of 8,235 worked contradictions published by CyberTRIZ.AI
Regulations
Business Context
Highly integrated spacecraft architectures can reduce mass, wiring, interfaces, and duplicated hardware by allowing multiple functions to share processors, power systems, communications networks, and other resources. However, greater integration can make failures more difficult to isolate. A fault originating in one function may propagate through shared resources and affect otherwise healthy systems.
Space TRIZ Resolution
Integration should preserve functional boundaries even when physical resources are shared. Software partitioning, independent power domains, protected communication paths, fault-containment regions, and configurable interfaces can prevent local failures from becoming system-wide events. Critical functions should retain the ability to disconnect or operate independently when shared resources become unstable.
Applicable TRIZ Principles
Principle 1 – Segmentation creates fault-containment boundaries within integrated systems.
Principle 2 – Taking Out disconnects malfunctioning elements before faults propagate.
Principle 11 – Beforehand Cushioning establishes isolation mechanisms before failures occur.
Expected Outcome
Greater system integration
Improved failure containment
Reduced fault propagation
Higher mission resilience
Decision Indicators
Early indicators include:
Individual equipment failures affect several unrelated functions.
Shared buses or processors create mission-level single points of failure.
Fault diagnosis becomes increasingly difficult as integration grows.
Systems cannot isolate malfunctioning components without losing healthy functions.
Hardware consolidation occurs without corresponding fault-containment architecture.