Have you ever wondered how data flows within a software system? How is information processed and transformed, and how does it deliver value? Data Flow Diagrams (DFDs) are a "visual language" that may answer such questions. An important tool for understanding how data moves in a software system, DFDs provide a visual representation of the flow of data from its entry point to its final destination and highlight data transformations along the way.
Whether you're a tester, a seasoned developer, a budding programmer, or a stakeholder involved in system design and architecture, understanding DFDs unlocks a valuable skillset. This article provides fundamental knowledge about DFDs, highlighting their benefits and guiding you on how to leverage them effectively.