Which problem do we fix first?
A support team has three problems. A cable trails across a corridor. The server room has no fire alarm. A printer sometimes jams.
There is time and money for one fix this week. You need a fair way to compare them.
By the end of this lesson
Note
I can rate a risk on a five by five matrix and say how serious it is.
Key words
| Word | What it means |
|---|---|
| Risk | the chance that something bad happens, and how bad it would be |
| Likelihood | how likely the harm is to happen |
| Severity | how bad the harm would be |
| Risk matrix | a grid that combines likelihood and severity |
| Risk rating | the score or band for one risk |
| Mitigation | an action that lowers a risk |
The cells students fill in are left blank in this preview.
Starter
Have a go
Starter
3 questionsYour answers are marked here and are not kept. A college account keeps every student’s marks.
Two scales: likelihood and severity
A risk has two parts. Likelihood is how likely it is. Severity is how bad it would be.
Each has five steps. Likelihood goes improbable, remote, occasional, probable, frequent. Severity goes negligible, marginal, moderate, critical, catastrophic. Number each step 1 to 5.
The two scales, numbered
| Number | Likelihood | Severity |
|---|---|---|
| 1 | Improbable | Negligible |
| 2 | Remote | Marginal |
| 3 | Occasional | Moderate |
| 4 | Probable | Critical |
| 5 | Frequent | Catastrophic |
The cells students fill in are left blank in this preview.
Check
Have a go
Check
3 questionsYour answers are marked here and are not kept. A college account keeps every student’s marks.