tailieunhanh - System Analysis, Design, and Development Concepts, Principles, and Practices phần 10

Chắc chắn, sự khác biệt sẽ xuất hiện giữa các dữ liệu thử nghiệm thực tế và kết quả dự kiến giới hạn quy định tại SPS hoặc đặc điểm kỹ thuật phát triển mục. Chúng tôi đề cập đến sự xuất hiện của một sự khác biệt như là một trường hợp thử nghiệm. Khi sự kiện thử nghiệm chẳng hạn như thất bại xảy ra, | Simpo PDF Merge and Split Unregistered Version - ht5p corrective action WHAT tests impacted by the failure must be repeated before you can resume testing at the test sequence where the failure occurred The answer resides in regression testing. During regression testing only those aspects of the component design that have been impacted by a corrective action are re-verified. Form fit and function checks of the UUT that were successfully completed and not affected by any corrective actions are not re-verified. Discrepancy Reports DRs Inevitably discrepancies will appear between actual test data and bounded expected results specified in the SPS or item development specification. We refer to the occurrence of a discrepancy as a test event. When test events such as failures occur a Discrepancy Report DR is recorded. The Test Director should define WHAT constitutes a test event in the SIVP and event criteria for recording a DR. At a minimum DRs document 1. The test event date time. 2. Conditions and prior sequence of steps preceding a test event. 3. Test article identification. 4. Test configuration. 5. Reference documents and versions. 6. Specific document item requirement and expected results. 7. Results observed and recorded. 8. DR author and witnesses or observers. 9. Degree of significance requiring a level of urgency for corrective action. DRs have levels of significance that affect the test schedule. They involve safety issues data integrity issues isolated tests that may not affect other tests and cosmetic blemishes in the test article. As standard practice establish a priority system to facilitate disposition of DRs. An example is provided in Table . Table Example test event DR classification system Priority Event Description 1 Emergency condition All testing must be TERMINATED IMMEDIATELY due to imminent DANGER to the Test Operators test articles or test facility. 2 Test component or configuration failure Testing must be HALTED .

TỪ KHÓA LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.