The relationship between the systems engineering filed and the theory of complexity is just the beginning (Honour, n.d.). Complexity is usually defined in terms of the use of agents, local information, reflex, and adaption. Some see complex systems as having so many components that are difficult or impossible to model (Castellani, n.d.). Other see that interacting components tend to produce unexpected properties that make overall system tough to model. Others still see complex systems as interfaces between humans, technology, and nature.
Systems engineering has been around for about 50 years and is still treated and learned by each practitioner during experimenting during a career. Complexity within systems engineering is somewhat newer than actual systems engineering. Complexity is determined by the extremes of chaos, which deals with situations in which behavior of the elements is completely unpredictable. The field of complexity has often been characterized as operating at the edge of chaos between extremes and occurs in systems that have sufficient chaos to be confusing, yet sufficient enough to provide patterns that are recognizable.
References
Castellani, B. (n.d.). Kent State University. Complexity and its Implications to the Systems Engineering. Retrieved from https://www.incose.org/docs/default-source/cleveland-northern-ohio/castellani-on-complexity-and-its-implications-to-the-systems-engineering-process.pdf?sfvrsn=4
Honour, E. (n.d.). University of South Australia. Systems Engineering and Complexity. Retrieved from http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.513.1309&rep=rep1&type=pdf
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