Data Flow Diagrams are usually drawn as a sequence at various levels of abstraction, with a Context Diagram at the highest level being successively refined through a level 1 DFD, level 2 DFD etc. The Context Diagram is simply a diagrammatic summary of inputs and outputs to and from the system, while at other levels the following diagrammatic conventions are usually adopted within SSADM: ____________________ Data flow
Data Flow Diagrams ni kawaida inayotolewa kama mlolongo katika ngazi mbalimbali za uchukuaji, na Context Mchoro katika ngazi ya juu kuwa mfululizo kuandaliwa kwa kiwango cha 1 DFD, ngazi ya 2 DFD nk Context Mchoro ni tu muhtasari diagrammatic ya pembejeo na mazao ya na kutokana na mfumo, wakati katika ngazi nyingine kufuatia mikataba diagrammatic ni kawaida iliyopitishwa ndani ya SSADM: ____________________ Data mtiririko