Sub system definitions

Sub-system

An identifiable element of a system which has all the characteristics of a system in its own right.
Found on http://www.encyclo.co.uk/local/20474

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Sub-system

Often used to describe any part of a system eg. the vertical system could be referred to as a Sub-system of the pathosystem.
Found on http://www.encyclo.co.uk/visitor-contributions.php

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