|1. Inter-dependencies can be summarized as the reliance of an organization's business functions, processes or systems with another within or externalto the same operating environment.
Note: This term is used during the Business Impact Analysis (BIA).
2. The reliance, directly or indirectly, of one activity or process upon another.
(Source: Business Continuity Institute - BCI)
3. The nature of a relationship between two parties.
(Source: Australia. A Practitioner's Guide to Business Continuity Management HB292 - 2006 )