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Data Flow Diagram · Banking · System Design

DFD Level 1: Banking Transaction Processing

Type FlowchartStandard Sugiyama layered DAG + orthogonal routingEngine schematex-flowchartUpdated 6/27/2026
DFD Level 1: Banking Transaction Processing
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The scenario

A bank's transaction processing system receives transactions from customers, validates them, checks balances, processes payments, updates accounts, and generates receipts.

What is in this drawing

Read the decisions behind it.

01

Transaction validation before processing

02

Balance check decision point

03

Data stores for account and transaction records

When designing or documenting a banking transaction processing system's data flow at the system level.

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