While Enterprise Architecture (EA) causes organisations to think,
work and model in domains, there are inadequacies in such a waterfall approach.
By restating domains as layers, i.e. LEAD (Layered Enterprise Architecture Design/
Development) based on the LEAD Enterprise Ontology, EA performs better
in enterprise layers and levels of abstraction. Through LEAD, the domain relationships
are also better captured, hence leading the advancement of agile EA
