Related Topics:
	Configurable Settings

Rating Scales

Severity, occurrence and/or detection rating scales can be used in either of the risk assessment methods: risk priority numbers or criticality analysis. These scales can contain any number of ratings (e.g., five-point scale, ten-point scale, etc.), and you can fully customize the values, descriptions and criteria.

The Severity, Occurrence and Detection pages in the Profiles/Library Manager show all of the predefined rating scales in the active library.

• To add a new rating scale, click Add.

• To edit an existing scale, select the row and click Edit or double-click the row.

There are also several ways to edit the rating scales for a particular project. Remember that changing the settings in an individual project does not automatically update the library or any other projects (Learn more...).

• Choose Project > Management > Configurable Settings > [Severity/Occurrence/Detection].

• Click one of the Edit icons on the Configurable Settings tab of the Project Properties window.

Editing a Scale

• Each Value must be unique within the scale and the values can be whole numbers or decimals. The software will order the numbers from smallest to greatest when you save the scale.

• Description specifies the short text description that will be associated with the numerical rating in the drop-down lists within the interface.

• Criteria 1 and Criteria 2 specify longer text descriptions of the criteria that can be used to determine whether the rating will be assigned to a particular issue. This information will be visible when the user clicks the Select Existing icon at the right side of the drop-down list for each rating scale in an FMEA.

 Clear All clears all entries and selections made in the window.

 Spelling checks the spelling of the text fields within the window.

Quantitative Values

If you are working with an Occurrence or Failure Probability scale, this window will also display a Quantitative Value column and a Treat Quantitative Values area. These settings apply if you want to use the qualitative rating assigned to a record to set that record's quantitative probability of failure model. The model can then be used for reliability or criticality calculations in the FMRA. (See Using Rating Scales to Set the Reliability Policy.)