ATM_System_L1DFD.svg: Level 1 Data Flow Diagram, ATM system, detailed subprocesses, clear visual representation, ATM interacting with customer and bank server, Authenticate User subprocess, magnified biometric scanner, encrypted data transmission lines, Select Transaction Type subprocess, user-friendly graphical interface, touch screen display, prominent transaction options, Process Transaction subprocess, real-time data verification, secure transaction protocols, multiple data pathways, Update Account subprocess, bank server database integration, encrypted communication channels, ledger updates, Dispense Cash/Receipt subprocess, cash dispensing mechanism, receipt printer, secure output channels, interconnected data flows, transaction lifecycle from customer input to transaction processing and system response, lucid flowcharts, data transformation stages, system components highlighted, circular data flow indicating continuous operation, top-down hierarchical structure clarifying data routing, clear and concise labels on each process and data flow, contrasting colors differentiating processes, data stores and external entities, uniform symbols for consistent interpretation, aesthetically balanced layout ensuring easy readability, sans-serif font enhancing clarity, professional and informative diagram style emphasizing system functionality, modern IT infrastructure design principles, vector graphics scalable to any size without loss of quality, diagrammatic clarity, emphasizing data transitions, architectural overview, technical illustration | Anything