1. A computerized method for consolidating data artifacts across domains in a context of an engineering reference model, said method comprising: generating a unified model data index by indexing a plurality of elements of a plurality of data artifacts, wherein said plurality of data artifacts describe a plurality of engineering and non-engineering domains; creating an engineering reference model describing said plurality of engineering and non-engineering domains; enriching said unified model data index by adding a plurality of relations between a plurality of elements of at least one instance of said engineering reference model and a plurality of elements of said unified model data index.