Understand functional and non-functional requirements specific to ATM operations (e.g., cash withdrawal, balance inquiry, PIN change).
Collaborate with banking domain experts and developers to clarify use cases.
Test Case Design
Create detailed test cases for:
Card insertion/removal
PIN validation
Transaction types (withdrawal, deposit, transfer)
Receipt printing
Error handling (e.g., insufficient funds, card read failure)
Hardware-Software Integration Testing
Validate interactions between software and ATM hardware components:
Card reader
Cash dispenser
Receipt printer
Touchscreen/keypad
Security & Compliance Testing
Test for compliance with PCI-DSS and other banking security standards.
Validate encryption, secure PIN entry, and timeout mechanisms.
Network & Backend Validation
Simulate network failures and latency.
Verify backend transaction logging and reconciliation.
Regression & Automation
Maintain regression test suites for frequent software updates.
Use automation tools where applicable (e.g., simulators for ATM settings).
Defect Reporting & Tracking
Log defects in tools like JIRA or HP ALM.
Work closely with developers to reproduce and resolve issues.