For further information, visit www.audiciaux.fr, www.scobex-rgpd-dpo.fr and www.dpo-externe-rgpd-france.fr. ISO 22317 provides a methodological framework for carrying out a Business Impact Analysis (BIA), which is essential for identifying critical processes, assessing the impacts of an interruption and setting recovery priorities. This guide details the implementation stages, integration into the BCP, monitoring and certification, guaranteeing effective and sustainable business continuity.