A data flow diagram (DFD) is a graphical or visual representation that uses a standardized set of symbols and notations to describe a business's operations through data movement. They're often ...

An entity relationship (ER) diagram is a visual way to show how information is organized in a database.

ERDs provide a visual starting point for database design that can also be used to help determine information system requirements throughout an organization. After a relational database is rolled out, ...

Charts and graphics are visual tools that help people put together and interpret different amounts of information. Using a diagram means putting together all the data you’ve gathered in an easy to use ...