A system for automatically counting function points is provided. The system includes an electronic document, an analysis component, and a user interface. The electronic document contains a sequence diagram that specifies interactions in a software application. The analysis component can analyze the interactions in the sequence diagram to identify a start point and an end point in the sequence diagram as a function point. The analysis component can also maintain a count of the function points. The user interface can promote counting one or more function points when more than one of the sequence diagrams involve data that is part of a set of data objects identified via the user interface.