Enterprise Data Warehouse Layer

Data Acquisition Layer

The data acquisition layer allows data to be physically integrated into BW. The layer receives the data from the source and distributes it in the BW system. The layer allows you to fill all targets separately from each other, and even at different times.

Quality and Harmonization Layer

In the quality and harmonization layer, the data is transformed, standardized and stored in DataStore objects.

The level of transformation required here depends on how different the sources are that the data comes from. No transformations are performed here that affect the business logic.

Data Propagation Layer

The data propagation layer serves the applications. This should happen as quickly as possible, which is why you have the option of semantic partitioning in this layer. The data is stored and consolidated in DataStore objects. The data propagation layer provides a basis for further distribution and reuse of data.

Corporate Memory

The Corporate Memory is filled (separately from the update) in the architected data marts. It contains the complete history of the loaded data. It can be used as a source for reconstructions, without needing to access the sources again.