  We present in this position paper a methodology to validate legal governance
regulatory models from an empirical approach, as illustrated by means of three
diagrams: (i) a scheme drawing the rule and meta-rule of law; (ii) a metamodel
for legal governance; (iii) a causal validation scheme for legal compliance.
These visualisations refer to different sets of notions corresponding
respectively to (i) a general scheme with three dimensions and four clusters,
(ii) a meta-model encompassing legal compliance through design (LCtD) and
ecological validity, and (iii) the con-struction of an empirical validation
model of causal chains. The final aim of the methodology is to build and test
smart legal ecosystems (SLE) for Industry 4.0 and 5.0.
