A Data Flow Model consists of a set of integrated Data Flow Diagrams supported by appropriate documentation. DFDs represent processes (activities which transform data from one form to another), data stores (holding areas for data), external entities (things which send data into a system or receive data from a system and finally data flows (routes by which data can flow).
Data Flow Model lina seti ya jumuishi Data Flow Diagrams mkono na nyaraka sahihi. DFDS kuwakilisha michakato (shughuli ambayo kubadilisha data kutoka hali moja hadi nyingine), Maduka data (ameshika maeneo kwa ajili ya data), vyombo nje (mambo ambayo kutuma data kwenye mfumo au kupokea data kutoka mfumo na hatimaye data mtiririko (njia ambayo data Unaweza kati yake).