Recovery Time Objective (RTO)
Time goal for the restoration and recovery of functions or resources based on the acceptable downtime and acceptable level of performance in case of a disruption of operations.
Source: ASIS – Business Continuity
The overall length of time an information system’s components can be in the recovery phase before negatively impacting the organization’s mission or mission/business processes.
Source: NIST – SP 800-34 Rev. 1 – Contingency Planning Guide for Federal Information Systems