If a manual system is being replaced, the two should be run in parallel for a time, as a part of this testing and validation.
If a manual system is being replaced, the two should be run in parallel for a time, as a part of this testing and validation.
当一个人工系统被取代时，两套系统（人工和计算机）应当同时进行操作，作为检验和验证的一部分。