Modeling the Data Warehouse structure
The Data Warehouse structure diagram describes the structure of a Data Warehouse. Primarily, the diagram is a static description, i.e., it illustrates the interrelation of data as well as their locations. In the ARIS architecture this type of description is realized in the data view. The focus lies on the interrelation and arrangement of information. The data dimensions are described by the info cube. The interplay of the dimensions is represented by the star schema (see the following figure). A dimension can serve as a key for connecting other dimensions. The objects of individual dimensions can have specific values, which are cataloged in fact tables and are exactly defined by KPIs. Dependencies are described in dimension tables listing their key attributes and characteristics. The hierarchical interrelations of the features are described by tree structures. Finally, dimensions can be allocated to master data tables using the structure diagram.