Data Flow Analysis

·         What processes make up the system?

·         What data are used in each process?

·         What data are stored?

·         What data enter and leave the system?

·         Entire emphasis is on the data analysis as can be seen from the previous question.

·         Following the flow of data through business processes tells analyst a great deal about how organization objectives are accomplished.

·          In the course of handling transactions and completing task data are input, processed, stored, retrieved, used, changed and output.

·         Data Flow Analysis studies the use of data in each activity.

·         It documents these findings in dataflow diagrams which graphically shows the relation between processes and data and in data dictionary describes the system data and where they are stored.