“Enterprise Data Warehouse Bus Matrix The enterprise data warehouse bus matrix is the essential tool for designing and communicating the enterprise data warehouse bus architecture. The rows of the matrix are business processes and the columns are dimensions. The shaded cells of the matrix indicate whether a dimension is associated with a given business process. The design team scans each row to test whether a candidate dimension is well-defined for the business process and also scans each column to see where a dimension should be conformed across multiple business processes. Besides the technical design considerations, the bus matrix is used as input to prioritize DW/BI projects with business management as teams should implement one row of the matrix at a time.”