Engineering
Engineering is the creative application of science, mathematical methods, and empirical evidence to the innovation, design, construction, operation and maintenance of structures, machines, materials, devices, systems, processes, and organizations. The discipline of engineering encompasses a broad range of more specialized fields of engineering, each with a more specific emphasis on particular areas of applied mathematics, applied science, and types of application. See glossary of engineering.
Security
Security is freedom from, or resilience against, potential harm (or other unwanted coercive change) from external forces. Beneficiaries (technically referents) of security may be persons and social groups, objects and institutions, ecosystems, and any other entity or phenomenon vulnerable to unwanted change by its environment.
Systems Engineering
Systems engineering is an interdisciplinary field of engineering and engineering management that focuses on how to design and manage complex systems over their life cycles. At its core, systems engineering utilizes systems thinking principles to organize this body of knowledge. Issues such as requirements engineering, reliability, logistics, coordination of different teams, testing and evaluation, maintainability and many other disciplines necessary for successful system development, design, implementation, and ultimate decommission become more difficult when dealing with large or complex projects. Systems engineering deals with work-processes, optimization methods, and risk management tools in such projects. It overlaps technical and human-centered disciplines such as industrial engineering, mechanical engineering, manufacturing engineering, control engineering, software engineering, electrical engineering, cybernetics, organizational studies and project management. Systems engineering ensures that all likely aspects of a project or system are considered, and integrated into a whole.
Security
From that point, my universe went on crumbling; new cracks appeared all the time. I could see that the pleasant securities of childhood, all of those warm little human emotions, all of those trivial aims and purposes that we allow to rule our lives, were an illusion. We were like sheep munching grass, unaware that the butcher's lorry is already on its way. I got used to living with a deep, underlying feeling of uncertainty that no one around me seemed to share. It was rather like living on death row.
Colin Wilson in Alien Dawn, pp. 12-13 (1998)
Systems Engineering
System engineering is the art and science of creating optimal solution systems to complex issues and problems.
Derek Hitchins (2007) Derek Hitchins, Prof. of Systems Engineering, former president of INCOSE at INCOSE UK
Security
This option the consumer retains of being able to buy security wherever he pleases brings about a constant emulation among all the producers, each producer striving to maintain or augment his clientele with the attraction of cheapness or of faster, more complete and better justice.If, on the contrary, the consumer is not free to buy security wherever he pleases, you forthwith see open up a large profession dedicated to arbitrariness and bad management. Justice becomes slow and costly, the police vexatious, individual liberty is no longer respected, the price of security is abusively inflated and inequitably apportioned, according to the power and influence of this or that class of consumers. The protectors engage in bitter struggles to wrest customers from one another. In a word, all the abuses inherent in monopoly or in communism crop up.
Gustave de Molinari, tr. J. Huston McCulloch, §X of The Production of Security (Auburn, AL: Ludwig von Mises Institute, 2009; orig. 1849), pp. 57–59.