====== System of Systems (SoS) ======
[[dido:public:ra:xapend:xapend.a_glossary:start| Return to Glossary ]]

**System of Systems (SoS)** is the viewing of multiple, dispersed, independent systems in context as part of a larger, more complex [[dido:public:ra:xapend:xapend.a_glossary:c:computer_system | Computer System or just System]]. A System is a group of interacting, interrelated, and interdependent components that form a complex and unified whole. 

The goal of an SoS architecture is to get maximum value out of a large System by an understanding of how each of the smaller Systems works, interfaces, and usage. Such designs require "Big Systems" thinking -- a holistic approach to analysis that focuses on the way constituent parts interoperate, work over a time period, and function within the context of a larger, evolving system. 

In the data center, independent constituent parts of a large system are connected through SoS-defined software interfaces called [[dido:public:ra:xapend:xapend.a_glossary:m:midware]].  Such programs ensure that constituents do not compete for subtasks within the larger system and provide messaging services so that constituent systems can communicate. 

Source: [[https://www.techtarget.com/searchapparchitecture/definition/system-of-systems-SoS ]]


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