Degradation Level Manager
Graceful Degradation Level Manager
The Graceful Degradation Level Manager is a software control component stored on radiation-hardened NOR flash that defines and executes transitions across five operational modes—ranging from full and reduced to minimal and survival—as system capacity decreases. Consuming 0.5 watts with a 500,000-hour mean time between failures, it coordinates smooth, reversible capability changes across a 100-year operational lifetime. In the lunar environment, where unshielded radiation from the lack of a magnetosphere degrades infrastructure over extended mission timelines, the component uses authenticated mode transitions to throttle resource allocation and prevent catastrophic functional failure.
Graceful degradation level manager defining and transitioning between operational modes (full, reduced, minimal, survival) as capacity decreases.
Purpose
Graceful degradation level manager defining and transitioning between operational modes (full, reduced, minimal, survival) as capacity decreases.
Context
Child of L2-SLF-DEGR within the Lunar Ark system
Principles
- ▸Defined degradation modes per L3-MNT-PRED state
- ▸Per-mode capability matrix
- ▸Smooth transitions with reverse capability
- ▸Coordination with L2-CDH-AUTO
- ▸Per ECSS-Q-ST-30C
Typical implementations
- ▸Industrial graceful degradation
- ▸Aerospace safe-mode hierarchy
- ▸Submarine reduced-capability modes
Lunar considerations
- ▸Long-mission essential for capability preservation
- ▸Authenticated mode transitions
- ▸L1-DVT degradation history
Specifications
Functional
| primary function | Graceful degradation level manager defining and transitioning between operational modes (full, reduced, minimal, survival) as capacity decreases. |
| degradation levels | 5 |
Physical
| mass kg | 0 |
| materials | Code on rad-hard NOR flash |
| vacuum compatibility | True |
Operational
| power consumption w | 0.5 |
| thermal range c | -40, 70 |
| lifetime years | 100 |
| mtbf hours | 500000 |
Interfaces
Provides
- Current degradation level
- Mode for autonomous planning
Requires
- System health
- Fault impact
Cite this entry
Lunar Ark Codex. "Degradation Level Manager" (L3-SLF-DEGR-LEVEL). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-SLF-DEGR-LEVEL
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.