An overview of structural systems theory

This paper provides an overview of the research conducted in context structural (or structured) systems. These are parametrized models used to assess and design system theoretical properties without considering a specific realization parameters (which could be uncertain or unknown). The systems led principled approach variety problems, into what is known as theory. Hereafter, we perform systematic problems methodologies theory since latest survey by Dion et al. 2003. During this period, most focus seems on system’s related controllability/observability decentralized control, linear time-invariant systems, under classic assumption that independent belonging infinite fields. Notwithstanding, it notable increase topics go beyond such scope underlying assumptions, well applications domains. Lastly, provide compilation open questions several settings discuss future directions field.