Question

Different layers in data warehouse architecture

Answer 1

*.Only transformations independent of the business process are performed between data acquisitionlayer and data propagation layer (usually in the Quality & Harmonization layer). These transformations create a Data Warehouse data model from data. This data model can be reused for different data marts.*.Transformations that relate to a specific business process are only performed after the Enterprise Data Warehouse layer (in other words, in the Business Transformation layer).