What is the meaning of severity 1?

In an effort to shed some kilos, I always take the scenic route up and down the stairs in the car park. I often pause at the first floor to reflect (not catch my breath!) Now ITIL refers to major incidents as those incidents with a severe negative business consequence. However, many people don't use the term major incidents but the so-called severity 1s.

However, severity 1s are not the same as major incidents. Severity 1s are usually incidents that someone has perceived to be of high priority and not necessarily measured as a metric of business consequence. Most major incidents are severity 1s and most severity 1s are not major incidents!!!

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