# effective (useful)

a property that causes work to result in a benefit

- Computed level: L12 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: everyday  ·  Arena: effective

## Emergence
**Emerges from:** [property](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-property.attribute), [work](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-work.effort), [outcome](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-outcome.result), [benefits](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-benefits.advantage), [cause](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-cause.reason), [results](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-results.outcome)

**Through:** the property links work effort with a beneficial outcome by causing the effort to produce that outcome

**Novel properties:**
- causal linkage between effort and benefit
- productive efficiency
- purposeful result generation

## Examples
- The 2020 Pfizer-BioNTech vaccine reduced symptomatic COVID-19 by 95% in clinical trials. *(medicine)*
- The Panama Canal's lock system lifts ships 26 meters to cross the continental divide efficiently. *(engineering)*
- Python's pandas library processes terabytes of data daily in production systems at Netflix. *(computing)*

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