Learn how to use Microsoft Visio to create process flow diagrams in four easy steps. Choose a template, add shapes and text, connect shapes, and format and customize your diagram.

Flow charts may include different levels of detail as needed, from a high-level overview of an entire system to a detailed diagram of one component process within a larger system.

IDG / OWASP (CC BY-SA 4.0) Figure 1. Data flow diagram for an online banking application (from Wei Zhang & Marco Morana, distributed under the OWASP license) ...