| 1. A Disaster is a sudden unplanned event that causes great damage or serious loss to an organization. It results in an organization failing to provide critical business functions for some predetermined minimum period of time. In short, it denies an organization access to people, process and infrastructure.
(Source: ISO 22399:2007 – Societal Security - Guideline for Incident Preparedness and Operational Continuity Management) - clause 3.4
(Source: SS540 Singapore Standard on Business Continuity Management - SS 540:2008)
(Source: Malaysia BCM Standard MS1970:2007)
4. A sudden, unplanned calamitous event causing great damage or loss. 1) Any event that creates an inability on an organization's part to provide critical business functions for some predetermined period of time. 2) In the business environment, any event that creates an inability on an organization’s part to provide the critical business functions for some predetermined period of time. 3) The period when company management decides to divert from normal production responses and exercises its disaster recovery plan. Typically signifies the beginning of a move from a primary to an alternate location. SIMILAR TERMS: Business Interruption; Outage; Catastrophe.
(Source: Disaster Recovery Institute International / Disaster Recovery Journal - DRII/DRJ)
5. An unanticipated incident or event, including natural catastrophes, technological accidents, or human-caused events, causing widespread destruction, loss, or distress to an organization that may result in significant property damage, multiple injuries, or deaths.
(Source: ASIS International - ASIS International)
(Source: NFPA 1600 Standard on Disaster/Emergency Management and Business Continuity Programs, NFPA 1600:2007)
7. If an incident overwhelms management's capabilities to cope,control will begin to be lost and the event becomes regarded as a disaster.Disasters are usually characterized by external agencies taking over management of the event.
(Source: Australia. A Practitioner's Guide to Business Continuity Management HB292 - 2006 )