Relationalism, in the broadest sense, applies to any system of thought that gives importance to the relational nature of reality.
In its narrower and more philosophically restricted sense, as propounded by the Indian philosopher Joseph Kaipayil[1][2][3] and others, relationalism refers to the theory of reality that interprets the existence, nature, and meaning of things in terms of their relationality or relatedness.
In the relationalist view, things are neither self-standing entities nor vague events but relational particulars.
Leibniz's relationism, on the other hand, describes space and time as systems of relations that exist between objects.
Although Albert Einstein was impressed by Mach's principle, he did not fully incorporate it into his general theory of relativity.