Escalation
1. Escalation is a provision that call for the intensification of communication within an organization of a event, emergency or incident which potentially may lead to a disaster or crisis.
 
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2. The process by which an E/I/C is communicated upwards through an organization's Business Continuity and/or risk E/I/C management reporting process.
(Source: Business Continuity Institute - BCI)
3. Passing information and/or requesting action on an Incident, Problem or Change to more senior staff (hierarchical escalation) or other specialists (functional escalation) The circumstances in which either vertical escalation for information/authority to apply further resources or horizontal escalation for greater functional involvement need to be precisely described, so that the purpose of the escalation and the nature of the required response is absolutely clear to all parties as the escalation occurs. Escalation rules will be geared to priority targets. Functional Escalation is sometimes called Referral.
(Source: ENISA - the European Network and Information Security Agency. BCM & Resilience Glossary)