This is an X-Shaped Matrix diagram. A basic X-Shaped Matrix diagram typically shows the critical relationships of four groups of items in a kind of circular flow. In this example an X-shaped matrix diagram is used to illustrate the relationship between the Plant, the Supplier, the Product, and the Type of Customer as a function of whether the technical requirements of production are “high” or “normal”. . For more examples, please check out our edrawMax template gallery.