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Risky Thinking – On Risk Management, Disaster Recovery, and Business Continuity | |
| Home / Risk Glossary / Single Loss Expectancy | 12 May, 2008 | |
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Single Loss Expectancy (Definition)The Single Loss Expectancy (SLE) is the expected monetary loss every time a risk occurs. The Single Loss Expectancy, Asset Value (AV), and exposure factor (EF) are related by the formula: SLE = AV * EF Introducing this conceptual breakdown of Single Loss Expectancy into Asset Value and Exposure Factor allows us to adjust the two terms independently: Asset Value may vary with inflation, market changes, etc. while introducing preventive measures may enable us to reduce an Exposure Factor. See Also: Asset Value, Exposure Factor, Annualized Loss Expectancy. How far away should a hot site or mirror site be?
A question that is often asked when designing a disaster recovery plan is how far away a hot site or mirror site should be. Is there a simple answer? (More...)
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