CH 15 Flashcards
ERM
enterprise risk management (ERM)
The comprehensive process of evaluating, measuring, and mitigating the many risks that pervade an organization.
KRIs
Key Risk Indicators (KRIs)
are critical predictive indicators organizations use to monitor and predict potential risks. For example, a KRI may identify an increasing trend in system downtime due to IT operational issues which impact business operations.
BPA
business process analysis (BPA)
Business Process Analysis (BPA) is a methodology used to understand, document, and improve business processes within an organization.
BIA
Business impact analysis (BIA) a process that helps businesses understand the potential effects of disruptions on their operations.
MEF
mission essential function (MEF)
MTD
Maximum tolerable downtime (MTD) is the longest period of time that a business function outage may occur
RTO
Recovery time objective (RTO) The maximum time allowed to restore a system after a failure event.
WRT
Work Recovery Time (WRT) In disaster recovery, time additional to the RTO of individual systems to perform reintegration and testing of a restored or upgraded system following an event.
RPO
Recovery point objective (RPO) The longest period that an organization can tolerate lost data being unrecoverable.
For example, if your RPO is measured in days, then a simple tape backup system should suffice; if RPO is zero or measured in minutes or seconds, a more expensive server cluster backup and redundancy solution will be required.
MTTR
Mean time to repair (MTTR) Metric representing average time taken for a device or component to be repaired, replaced, or otherwise recover from a failure.
MTBF
Mean time between failures (MTBF) Metric for a device or component that predicts the expected time between failures.
For example, if you have 10 appliances that run for 50 hours and two of them fail, the MTBF is 250 hours/failure (10*50)/2.
