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Conducting a business impact analysis (BIA) is the first step when creating an organization's disaster recovery plan (DRP) because it helps to identify and prioritize the critical business functions or processes that need to be restored after a disruption, and determine their recovery time objectives (RTOs) and recovery point objectives (RPOs)2. Identifying the response and recovery teams is not the first step, but rather a subsequent step that involves assigning roles and responsibilities for executing the DRP. Reviewing the communications plan is not the first step, but rather a subsequent step that involves defining the communication channels and protocols for notifying and updating the stakeholders during and after a disruption. Developing response and recovery strategies is not the first step, but rather a subsequent step that involves selecting and implementing the appropriate solutions and procedures for restoring the critical business functions or processes.
References: 2 https://www.isaca.org/resources/isaca-journal/issues/2018/volume-3/business-impact-analysis- bia-and-disaster-recovery-planning-drp