Using the Integrity Analysis Digit Error Parameters

The number of image digit errors allowed and percentage of digit errors allowed parameters are used together to dynamically change the number of digit errors that are allowed per MICR field, based on the expected size of the MICR field. The number of image digit errors allowed sets a maximum number of errors over which the match cannot go. Percentage of digit errors allowed sets the maximum percentage of digit errors that are allowed. When specifying both parameters, the actual number of digit errors allowed in a field is defined as the lowest number that meets both criteria. The following examples show how these parameters work together:

• The number of image digit errors allowed parameter is set to 2 and percentage of digit errors allowed is set to 100. Each field is allowed a fixed number of digit errors, which is 2.
• The number of image digit errors allowed parameter is set to 2 and percentage of digit errors allowed is set to 10. A MICR field of 10 characters allows 1 digit error before the match score is impacted.

Each parameter also works independently from the other. The following examples show how to use the parameters individually.

• To use only number of image digit errors allowed to set a fixed number of digit errors for each field, set the percentage of digit errors allowed field to 100.
• To use only percentage of digit errors allowed to calculate the number of acceptable digit errors as a percentage of the field size, set number of image digit errors allowed to a length larger than the expected size of the MICR field.