Each impact element must have an impact metric (which can be common across multiple impact elements) e.g., labour and power impact elements might both have a shared impact metric of ‘opex $m/yr’; similarly unplanned and planned downtime might have a shared impact metric of availability %.

To add an impact metric:

1. Select ‘Admin/Change Structure’ section
2. Select ‘Impact Metrics’ menu item
3. Select ‘Create impact metric’ button
4. Complete ‘Impact Metric’ form

The number format for the impact metric defines how that format is displayed in any output showing that impact.

The number format is defined as {minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}:

• minIntegerDigits: Minimum number of digits before the decimal point (pads with zeros if needed). Default is 1.
• minFractionDigits: Minimum number of digits after the decimal point (pads with zeros if needed). Default is 0.
• maxFractionDigits: Maximum number of digits after the decimal point (trims if needed). Default is 3.

As examples:

• 123.4 with format ‘1.2-2’ is output as 123.40
• 5  with format ‘2.0-0’ is output as 05