Configuring Criticality Metrics

Criticality formulas are configured in the String Preferences area of the Preferences page. Formulas may include the following:

• A number (e.g., 7, 12.4, etc.).
• A criticality field, represented by "c" plus the field’s display order — e.g, c2 or c4— which is set and shown on the Criticality page.
• A list of criticality fields and/or numbers separated by commas and enclosed within brackets (e.g., [c4,c3,c2] or[c7,c5,9]). In this case, the formula calculates criticality using the first value within the brackets that is not 0.
• New in Version 2021, a list of criticality fields and/or numbers separated by commas and enclosed within parentheses, preceded by a max or min function call — e.g., max(c4,c5,c6) or min(c4,c5,c6). In this case, the formula will calculate criticality using the maximum or minimum value within the parentheses.

Formulas are parsed from left to right.

Syntax

• Numbers and criticality fields that are not enclosed within brackets or parentheses must be separated by a math operator (*, /,+ or –).
• A space is required before and after each math operator.
• Spaces are not required between items in brackets or parentheses.

Default Formulas and Examples

The default Incident Potential Criticality formula is c1 * c2 * c3.

The default Problem Current CIN formula is c1* c2 * c3 * [c6,c5,c4] * c7. This formula calculates criticality as follows:

1. Criticality fields c1, c2 and c3 are multiplied.
2. The fields within the bracket are checked for 0. The product of step 1 is multiplied by the first non-0 field (the other two fields are ignored).
3. The product of steps 1 and 2 is multiplied by c7.

Formulas using the min( ) and max( ) functions calculate criticality in a similar manner but use either the maximum (highest) or minimum (lowest) value contained within the parentheses:

c1 * c2 * c3 * (c4,c5,c6)