In this paper, we present a model based on relations for bigraphical reactive systems [Milner09]. Its defining characteristics are that validity and reaction relations are captured as traces in a multi-set rewriting system. The relational model is derived from Milner's graphical definition and directly amenable to implementation.
Cite
@article{arxiv.1111.0086,
title = {A Bigraph Relational Model},
author = {Maxime Beauquier and Carsten Schürmann},
journal= {arXiv preprint arXiv:1111.0086},
year = {2011}
}