Difference between revisions of "Interdependency"

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(National Definitions)
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<big>The terms interdependency and [[dependency]] are often used in the [[Critical Infrastructure Protection|CIP]] literature as synonymous. See also [[dependency]].</big>
 
<big>The terms interdependency and [[dependency]] are often used in the [[Critical Infrastructure Protection|CIP]] literature as synonymous. See also [[dependency]].</big>
  
==Definitions==
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<big>One of the most cited definitions of interdependency is the one by Rinaldi et al. who define interdependency as a</big>
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{{definition|bidirectional relationship between two infrastructures through which the state of each infrastructure influences or is correlated to the state of the other <ref> Steven M. Rinaldi, James P. Peerenboom, Terrence K. Kelly, Identifying, Understanding and Analysing Critical Infrastructure Interdependencies, ''IEEE Control Systems Magazine'', December 2001, p.14. </ref>. }}==Definitions==
 
=== European Definitions ===
 
=== European Definitions ===
<big>One of the most cited definitions of interdependency is the one by Rinaldi et al. who define interdependency as a</big>
 
 
{{definition|bidirectional relationship between two infrastructures through which the state of each infrastructure influences or is correlated to the state of the other <ref> Steven M. Rinaldi, James P. Peerenboom, Terrence K. Kelly, Identifying, Understanding and Analysing Critical Infrastructure Interdependencies, ''IEEE Control Systems Magazine'', December 2001, p.14. </ref>. }}
 
 
<big>
 
<big>
 
This definition is adopted on the Commission's staff working document on a new approach to the EPCIP <ref> [http://ec.europa.eu/energy/infrastructure/doc/critical/20130828_epcip_commission_staff_working_document.pdfCommission Staff Working Document on a new approach to the European Programme for Critical Infrastructure Protection - Making European Critical Infrastructures more secure, SWD(2013) 318 final,  Brussels, 28.8.2013]</ref>:</big>
 
This definition is adopted on the Commission's staff working document on a new approach to the EPCIP <ref> [http://ec.europa.eu/energy/infrastructure/doc/critical/20130828_epcip_commission_staff_working_document.pdfCommission Staff Working Document on a new approach to the European Programme for Critical Infrastructure Protection - Making European Critical Infrastructures more secure, SWD(2013) 318 final,  Brussels, 28.8.2013]</ref>:</big>
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=== National Definitions ===
 
=== National Definitions ===
 
==== Australia ====
 
==== Australia ====
{{definition|Inter-dependency is The series of supply-orientated relationships that exist between distinct systems that, when altered, affect their continued operation.<ref>[http://www.safeguarding.qld.gov.au/criticalinfrastructure/glossary.htm Glossary of the Government of Queensland]</ref>}}
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{{definition|Inter-dependency is The series of supply-orientated relationships that exist between distinct systems that, when altered, affect their continued operation. <ref>[http://www.safeguarding.qld.gov.au/criticalinfrastructure/glossary.htm Glossary of the Government of Queensland]</ref>}}
 
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<br />
  
 
==== Germany ====
 
==== Germany ====
{{definition|Interactions or mutual influences between different [[Critical Infrastructure]]s.<ref>http://www.kritis.bund.de/SharedDocs/Downloads/Kritis/EN/Baseline%20Protection%20Concept.pdf Protection of Critical Infrastructures – Baseline Protection Concept: Recommendation for Companies, BMI.</ref>.}}
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{{definition|Interactions or mutual influences between different [[Critical Infrastructure]]s. <ref>http://www.kritis.bund.de/SharedDocs/Downloads/Kritis/EN/Baseline%20Protection%20Concept.pdf Protection of Critical Infrastructures – Baseline Protection Concept: Recommendation for Companies, BMI.</ref>}}
 
<br /> An older definition was:
 
<br /> An older definition was:
 
{{definition|Interdependency is the complete or partial mutual [[dependency]] of several goods or services <ref>Unpublished working glossary of UP KRITIS and BSI, 2014</ref>.}}
 
{{definition|Interdependency is the complete or partial mutual [[dependency]] of several goods or services <ref>Unpublished working glossary of UP KRITIS and BSI, 2014</ref>.}}
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==== United States ====
 
==== United States ====
{{definition|Mutually reliant relationship between entities (objects, individuals, or groups) <ref name="DHSLex"> [http://www.dhs.gov/xlibrary/assets/dhs-risk-lexicon-2010.pdf DHS Risk Lexicon 2010 Edition, September 2010]</ref>.}} The degree of interdependency does not need to be equal in both directions. For example, the Energy Sector depends on a functioning Water Sector for successful day-to-day operations, just as the Water Sector needs energy to effectively manage water and wastewater systems <ref name="fema"> [http://emilms.fema.gov/IS921/921_Toolkit/index.htm Critical Infrastructure Protection and Resilience Toolkit (Glossary), US Department of Homeland Security]</ref>.
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{{definition|Mutually reliant relationship between entities (objects, individuals, or groups). <ref name="DHSLex"> [http://www.dhs.gov/xlibrary/assets/dhs-risk-lexicon-2010.pdf DHS Risk Lexicon 2010 Edition, September 2010]</ref>}} The degree of interdependency does not need to be equal in both directions. For example, the Energy Sector depends on a functioning Water Sector for successful day-to-day operations, just as the Water Sector needs energy to effectively manage water and wastewater systems <ref name="fema"> [http://emilms.fema.gov/IS921/921_Toolkit/index.htm Critical Infrastructure Protection and Resilience Toolkit (Glossary), US Department of Homeland Security]</ref>.
 
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[[Category:Dependency]]
 
[[Category:Dependency]]
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{{#set:defined by=EU|defined by=Australia|defined by=Germany|defined by=Republic of Trinidad & Tobago|defined by=United States}}

Revision as of 17:15, 10 June 2015

The terms interdependency and dependency are often used in the CIP literature as synonymous. See also dependency.


One of the most cited definitions of interdependency is the one by Rinaldi et al. who define interdependency as a

bidirectional relationship between two infrastructures through which the state of each infrastructure influences or is correlated to the state of the other [1].

==Definitions==

European Definitions

This definition is adopted on the Commission's staff working document on a new approach to the EPCIP [2]:

Interdependencies can be identified "between critical infrastructures, industry, and state actors". The working document also highlights that threats to a single Critical Infrastructure can have "a very significant impact on a broad range of actors in different infrastructures and more widely". The document also highlight the cross-border effect of interdependencies, spanning a number of European countries. The example identified in the document is the European high-voltage electricity grid, composed of the interconnected national high-voltage electricity grids.


National Definitions

Australia

Inter-dependency is The series of supply-orientated relationships that exist between distinct systems that, when altered, affect their continued operation. [3]


Germany

Interactions or mutual influences between different Critical Infrastructures. [4]


An older definition was:

Interdependency is the complete or partial mutual dependency of several goods or services [5].


Republic of Trinidad & Tobago

Mutually reliant relationship between entities (objects, individuals, or groups). [6]

The degree of interdependence does not need to be equal in both directions.

United States

Mutually reliant relationship between entities (objects, individuals, or groups). [7]

The degree of interdependency does not need to be equal in both directions. For example, the Energy Sector depends on a functioning Water Sector for successful day-to-day operations, just as the Water Sector needs energy to effectively manage water and wastewater systems [8].



Discussion

Empirical analysis of Critical infrastructure incidents and events by Van Eeten et al. shows that interdependencies (= the mutual Dependency) hardly occur; and when they occur the effect is at a lower (weaker) dependency level.

See also

Notes