Use our Database Design Tool to create your first online diagram from a template or blank canvas or import a document. Add text, shapes, and lines to customize your flowchart. Learn how to adjust styling and formatting within your flowchart.

A data flow diagram (DFD) maps out the flow of information for any process or system. It uses defined symbols like rectangles, circles and arrows, plus short text labels, to show data inputs, outputs, storage points and the routes between each destination.

With ERDs, you can start to explore database requirements, potential challenges, and solutions before you begin implementation. Let’s talk more about what a good database diagram includes. What is an ERD and how does it help with database design?

A database model shows the logical structure of a database, including the relationships and constraints that determine how data can be stored and accessed. Individual database models are designed based on the rules and concepts of whichever broader data model the designers adopt.

ER diagrams are used to model and design relational databases, in terms of logic and business rules (in a logical data model) and in terms of the specific technology to be implemented (in a physical data model.)

Create your first database diagram from a template, blank canvas, or imported document. Add shapes and text and connect lines to your database structure. Adjust styling and format within your database diagram.

Entity-relationship diagrams (ERD) are essential to modeling anything from simple to complex databases, but the shapes and notations used can be very confusing. This guide will help you to become an expert in ER diagram notation, and you will be …

Create next-generation diagrams with AI, data, and automation in Lucidchart. Understand and optimize every system and process.

A data flow diagram (DFD) illustrates the flow and transformation of data for a particular business process. It’s a visual representation of how data flows through a system, so you can clearly see where the data comes from, where it goes, and how it gets stored.

A data flow diagram shows the way information flows through a process or system. Whether you are improving an existing process or implementing a new one, a data flow diagram (DFD) will make the task easier. If you’re new to data flow diagrams, this guide will help get you started.