# maintenance (upkeep)

Work that holds the parameters of a thing inside its window.

- Computed level: L14 (depth in the emergence graph, not abstraction)
- Status: published  ·  Domain: systems  ·  Arena: E13

## Emergence
**Emerges from:** [work](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-work.effort), [parameter](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-parameter.condition), [window](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-window.range), [hold](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-hold.physical), [inside](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-inside.spatial)

**Through:** Continuous effort resists drift by actively holding conditions within prescribed limits, using force to prevent departure.

**Novel properties:**
- maintained stability
- bounded persistence
- resistance to decay

## Examples
- A body holds 37°C continuously, at metabolic cost, or a thousand chemistries stop. *(biology)*
- The Roman aqueducts stood structurally sound for centuries after the crews that cleared the channels stopped being paid. *(institutions)*
- A bridge that is not being painted shows rust; a norm that is not being enforced looks exactly like a norm that is. *(institutions)*

## Used by
- [abandonment](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-abandonment.withdrawal) (L15)
- [alive](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-alive.biological) (L15)
- [balance](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-balance.state) (L15)
- [band aid](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-band-aid.upkeep) (L16)
- [bleeding edge](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-bleeding-edge.threshold) (L15)
- [boiling over](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-boiling-over.threshold) (L19)
- [burnout](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-burnout.capacity) (L19)
- [complex](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-complex.structured) (L18)
- [confusion](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-confusion.state) (L15)
- [corruption](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-corruption.process) (L15)
- [cutting corners](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-cutting-corners.margin) (L15)
- [death by a thousand cuts](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-death-by-a-thousand-cuts.drift) (L15)
- [decay](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-decay.process) (L15)
- [deferred maintenance](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-deferred-maintenance.upkeep) (L15)
- [dissonance](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-dissonance.conflict) (L15)
- [doomed](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-doomed.inevitable) (L16)
- [dropping balls](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-dropping-balls.capacity) (L19)
- [duct tape](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-duct-tape.upkeep) (L16)
- [ecosystem](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-ecosystem.interdependent) (L15)
- [exhaustion](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-exhaustion.capacity) (L15)
- [factor of safety](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-factor-of-safety.margin) (L15)
- [flux](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-flux.rate) (L15)
- [fuel](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-fuel.resource) (L16)
- [going viral](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-going-viral.excess) (L15)
- [good enough](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-good-enough.threshold) (L16)
- [harmony](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-harmony.relational) (L15)
- [healthy](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-healthy.condition) (L15)
- [high level](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-high-level.abstraction) (L16)
- [holding it together](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-holding-it-together.upkeep) (L15)
- [homeostasis](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-homeostasis.regulation) (L16)
- [in too deep](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-in-too-deep.path-dependence) (L15)
- [insurance](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-insurance.financial) (L18)
- [keeping the lights on](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-keeping-the-lights-on.upkeep) (L17)
- [keystone](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-keystone.system) (L18)
- [knock on effect](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-knock-on-effect.stacked) (L16)
- [legacy code](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-legacy-code.unmeasured) (L15)
- [legacy](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-legacy.enduring) (L18)
- [life](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-life.biological) (L15)
- [liquid](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-liquid.state) (L15)
- [maxed out](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-maxed-out.threshold) (L19)

---
*Canonical: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-maintenance.upkeep*  
*Structured data: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-maintenance.upkeep.json*  
*Every definition provably resolves to space, time, energy and pattern.*