在你拿真金白银进行交易之前，你尽可以回溯测试或模拟交易。
You can back test or paper trade for as long as you need before investing real money.
回溯到初始需求从而确保所有的需求都被执行和测试，这在任何一支管理良好、运作高效的软件开发团队中都处于核心地位。
Traceability back to original requirements to ensure that all requirements have been implemented and tested is at the core of any well governed and efficient software development effort.
另一方面，错误是意外的问题——因为我们事先不知道哪里会出错，我们需要分析实际测试运行中的回溯来诊断这种问题。
Errors, on the other hand, are unexpected problems — since we do not know in advance what can go wrong, we need to examine the traceback in the actual test run to diagnose such problems.
应用推荐