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.

Because data flow diagrams were developed by system engineers rather than security pros, they include a lot of overhead that isn’t necessary for threat modeling.