Group 1 - The testing of blockchain ETF software is a complex and multi-faceted process that requires traditional financial software testing methods while also considering the characteristics of blockchain technology, cryptocurrency markets, and strict regulatory requirements [1] - Key technical challenges include data accuracy and completeness testing, integration testing, performance and stability testing, and security testing [3][4] Group 2 - Market data source validation is essential to ensure the software can accurately and in real-time retrieve prices and trading volumes from major cryptocurrency exchanges and data providers [5] - NAV (Net Asset Value) calculation verification is a core function of ETF software, requiring rigorous testing to ensure accurate daily or real-time NAV calculations based on holdings, market prices, fees, and dividends [5] - Consistency of holding data must be tested to ensure the ETF's displayed holdings align with actual assets managed by custodians [5] Group 3 - Compliance and regulatory requirements testing is crucial, including the generation of regulatory reports and monitoring of investment restrictions [8] - Error handling and recovery testing are necessary to ensure the software can manage external system failures and recover from crashes while maintaining data consistency [8] Group 4 - The testing process must incorporate various methods such as automated testing, manual testing, penetration testing, and performance testing, requiring close collaboration with fund operations, compliance, and security teams [7] - The rapid changes in the cryptocurrency market and related technologies necessitate continuous updates to testing strategies and use cases [8]