Defining critical activities for BIA

Answer:

If this activity is considered critical to the business, and its disruption for an amount of time can make business unrecoverable, then you must include it in the BC. The difference from this activity to the others is that while for others activities you may have to consider recovery on a daily time frame (i.e., in the next day the activity will be required), for this specific activity you have to consider a weekly time frame for recovery (if not recovered on Monday/Tuesday, the activity will be required only on the next week). On both cases you have to consider worst-case scenario, i.e. that the disruption occurs at the worst possible moment.

This article will provide you further explanation about performing BIA:
- How to implement business impact analysis (BIA) according to ISO 22301 https://advisera.com/27001academy/knowledgebase/how-to-implement-business-impact-analysis-bia-according-to-iso-22301/

These materials will also help you regarding performing BIA:
- Implementing Business Impact Analysis according to ISO 22301 [free webinar on demand] https://advisera.com/27001academy/webinar/implementing-business-impact-analysis-according-to-iso-22301-free-webinar-on-demand/
- Book Becoming Resilient: The Definitive Guide to ISO 22301 Implementation https://advisera.com/books/becoming-resilient-the-definitive-guide-to-iso-22301-implementation/