Attatchment 3 Task Rating System

DOE-HDBK-1078-94

ATTACHMENT 3

Frequency of Performing Task:

1. Less than once per year

Minimum

2. Once every five to twelve months.

3. Once every three weeks to four months.

4. Once every one to two weeks.

5. More frequently than once per week.

Maximum

Importance of Task:

1. Consequences of improper performance are negligible (improper

Minimum

performance would make no difference in plant operation).

2. Consequences of improper performance are undesirable (improper

performance may impair reliability of a system or a process).

3. Consequences of improper performance are serious (improper

performance may require an Unusual Occurrence Report).

4. Consequences of improper performance are severe (improper

performance may result in an Alert Event).

5. Consequences of improper performance are extremely severe

Maximum

(a serious injury or site emergency may result).

Difficulty in Performing Task:

1. "Very easy" to perform.

Minimum

2. "Somewhat easy" to perform.

3. "Moderately difficult" to perform.

4. "Very difficult" to perform.

5. "Extremely difficult" to perform.

Maximum