A form of scientific realism emphasizing warranted knowledge of physical relations or structure despite changes in proposed underlying entities. An account must specify which interpreted relations survive and in which domains, rather than merely point to recurring notation.[ref]
Structural Realism: The Best of Both Worlds? by John Worrall. discussion of the Fresnel–Maxwell transition
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Structuralism in the philosophy of science is an intellectual movement that emerged primarily in the mid-20th century, influencing various fields including linguistics, anthropology, psychology, and the philosophy of science itself. At its core, structuralism focuses on understanding the structures that underlie all human culture and knowledge rather than concentrating on individual components or elements in isolation.