The Relationship Matrix is a spreadsheet that displays relationships between model elements within the same package or between model elements in different Packages. The Relationship Matrix shows all of the associations of a given type between source and target elements. Listing the source Package elements down the side of the matrix, listing the target Package elements across the top of the matrix, and displaying an arrow indicating the direction of the relationship if one exists between a source and a target element. The approach reflects which part is the source and which is the target. The display may also include a bent arrow icon, indicating that the same type of connectors exists between the source and target elements in both directions.