The end result of modeling the DFD, is a data dictionary. I have provided a way to create a data dictionary. We must ensure that the resulting data dictionary is correct and appropriate. Therefore it must be understood about the definition and how to make it. And now, I’ll give one the example. Here is one example of the data dictionary. DFD modeling for library information system. Table data dictionary consists of a description name, code, description, and data types. A data dictionary tables can be more than one table to the database.