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BCMS cascading process

Cascading the BIA values

The RTO, MTPD, and criticality values are automatically cascaded through the BCMS through the mapping processes with adjustments for respective dependency levels. As new components are mapped to the product, service or other critical objective, the BIA values are cascaded to the allocated item. Where one component is mapped to multiple products, services or other critical objectives, the system automatically adjusts the composite value to the smallest value for the RTO and MTPD and the most critical value for the criticality rating.

The chosen dependency level will affect the BIA values being transferred from the product, service or other critical objective to the mapped process or activity. Information of these BIA value changes will appear in the dropdown list box.

Very high dependency
The top row in the list box (beneath the headings) relates to a "very high" dependency rating. This will pass the same BIA values to the mapped component as has been applied to the product or service through the BIA process. A very high dependency rating indicates that any serious disruption to the process or activity being allocated is likely to completely disrupt the dependent product, service or other critical objective.

High dependency
The second row relates to a "high" dependency level rating and therefore the RTO and MTPD values being passed from the product, service or other critical objective to the allocated process or activity have moved to the next larger value in the time period look up table. This new value is to reflect the slightly lower level of dependency. A "high" dependency rating indicates that any serious disruption to the process or activity being allocated is likely to have a fairly serious impact on the dependent product, service or other critical objective.

Medium dependency
The third row relates to a "medium" dependency level rating and the RTO and MTPD values being passed on the process or activity have been extended by two time periods in the look up table. This new value reflects the medium level of dependency of the product, service or other critical objective on the related process or activity.  A "medium" dependency rating indicates that any serious disruption to the process or activity being allocated is likely to have a measurable but not serious impact on the dependent product, service or other critical objective.

Low dependency
The fourth row relates to a "low" dependency level rating and the RTO and MTPD values being passed on the process or activity have been extended by three time periods in the look up table. These new values reflect the low level of dependency of the product, service or other critical objective on the related process or activity.  A "low" dependency rating indicates that any serious disruption to the process or activity being allocated is not likely to have that much of an impact on the dependent product, service or other critical objective.

Very low dependency
The bottom row relates to a " very low" dependency level rating and the RTO and MTPD values being passed on the process or activity have been extended by four time periods in the look up table. These new values reflect the very low level of dependency of the product, service or other critical objective on the related process or activity.  A " very low" dependency rating indicates that any serious disruption to the process or activity being allocated will have only very minimal impact on the dependent product, service or other critical objective.

This cascading process can be seen and verified in the validation statements explained in the next section.

Reference material:

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