Data Flow Diagrams

Examples show you how to use Data flow diagram to visualize the data processing in business analysis field. A data flow diagram is strong in illustrating the relationship of processes, data stores and external entities in business information system.

Vehicle Maintenance Depot

The DFD example here shows the level 1 DFD, which is the decomposition (i.e. break down) of the system shown…

Vehicle Maintenance Depot (Context DFD)

The DFD example here shows a context Data Flow Diagram drawn for a vehicle maintenance depot system. It contains a…

Supermarket App

The DFD example here shows the level 1 DFD, which is the decomposition (i.e. break down) of the Supermarket App…

Supermarket App (Context DFD)

The data flow diagram example here shows a context Data Flow Diagram that is drawn for an Android supermarket app.…

Customer Service System

The DFD example here shows the level 1 DFD, which is the decomposition (i.e. break down) of the CS System…

Customer Service System (Context DFD)

The data flow diagram example here  shows a context Data Flow Diagram that is drawn for a railway company's Customer…

Securities Trading Platform

The DFD example here shows the level 1 DFD, which is the decomposition (i.e. break down) of the securities trading…

Securities Trading Platform (Context DFD)

The DFD example here shows a context Data Flow Diagram that is drawn for a security trading platform. It contains…

Food Ordering System

The next stage (See Previous Stage) is to create the Level 1 Data Flow Diagram. This highlights the main functions…

Food Ordering System (Context DFD)

A DFD context diagram is a data flow diagram that only shows the top level, otherwise known as Level 0.…