Breadcrumbs are filters displayed as a series of links above the record list. Click the individual elements of the path to see a different view. \n breakdowns. Sometimes also called dimensions or drill-downs, breakdowns divide data in different ways. For example, incidents can be divided by priority or by assignment group. In Performance Analytics, data can be subdivided two levels deep for further analysis. A first-level breakdown could be by priority, for example grouping all Critical incidents. In this example, a second-level breakdown could be by assignment group, subdividing Critical incidents into, for example, Service Desk, Database, CAB, and so on. The breakdowns can also be turned around; for example, first by assignment group and then by priority, creating a so-called breakdown matrix.