But the problem with scheduling NFT early, is that in many cases the system need to attain a minimum level of stability and functionality completeness for the test cases to run.

• 然而，把非功能性测试安排到早期也存在问题。那就是在很多情况下系统需要获得一个最低程度的稳定性和功能完整性来运行测试用例。