Designing a Secure Payment Funds Account System: Architecture, Accounting Rules, and Best Practices
This article presents a comprehensive guide to building a payment funds account system, covering core concepts such as account balance, ledger, and voucher, accounting principles like double‑entry bookkeeping, storage choices with TDSQL, security measures using the STRIDE model, consistency guarantees, distributed transactions, high‑availability design, and operational practices such as idempotency, rate limiting, and thorough auditing.
