Entity Modelling

www.entitymodelling.org - entity modelling introduced from first principles - relational database design theory and practice - dependent type theory

ER Meta Models

Meta mathematics is the mathematics of mathematics and so by analogy meta modelling is the modelling of modelling - an ER meta model is an ER model that describes ER models. A simplified meta model is shown in figure 6.

Figure 6
An ER model showing the three principle components of ER modelling.