REG NASA-LLIS-1106--1999 Lessons Learned International Space Station Program Hardware-Software Integration Testing.pdf

1、Lessons Learned Entry: 1106Lesson Info:a71 Lesson Number: 1106a71 Lesson Date: 1999-02-01a71 Submitting Organization: HQa71 Submitted by: David M. LengyelSubject: International Space Station Program/Hardware-Software/Integration Testing Description of Driving Event: Crew Involvement in Integration T

2、estingLesson(s) Learned: Astronaut crew participation in testing improves fidelity of the test and better familiarizes the crew with systems and procedures.Recommendation(s): NASA should continue to involve the crew in integration testing and do so more heavily and at an earlier stage.Evidence of Re

3、currence Control Effectiveness: NASA concurs with the recommendation. The Flight Crew Operations Directorate (FCOD) at JSC is making every effort to ensure that astronauts are actively involved in hardware and software testing of Space Station components at all phases of their development. FCOD hear

4、tily concurs that this involvement needs to continue at an early stage and with a high level of participation. This involvement is accomplished through the technical assignments that are filled by astronauts who are not assigned to a specific mission and by the assigned flight crews responsible for

5、the assembly of the hardware on orbit. Traditionally, flight crews are assigned about 1 year ahead of time for a shuttle mission.In the case of Space Station assembly missions, an attempt has been made to assign crews at least a year and a half ahead of time so that they are actively involved in the

6、 development of the on orbit Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-procedures and the test and checkout of the hardware. Early involvement ensures that crews are able to make engineering inputs based on operational experience to correct pro

7、blems before they result in time consuming and difficult on orbit workarounds.All test activities are tracked by the Vehicle Integration Test Team (VITT) within FCOD. To accomplish this, personnel are assigned the responsibility to monitor the hardware at the various sites where it is being built, i

8、ncluding overseas sites, as well as at the Kennedy Space Center. These personnel provide the astronauts with the current status of the hardware, coordinate crew visits to the sites and ensure that astronauts are participants in all critical tests.Additionally, the increment crews that will actually

9、be living on the station after it is constructed have been made active participants in the test and checkout of the hardware while it is still on the ground.FCOD will continue to ensure that this crew involvement continues and is not just limited to Space Station assembly missions but also encompass

10、es Orbiter upgrades, the Crew Return Vehicle, payloads, and any future program that requires astronaut participation.Documents Related to Lesson: N/AMission Directorate(s): a71 Space Operationsa71 Exploration SystemsAdditional Key Phrase(s): a71 Aerospace Safety Advisory Panela71 Computersa71 Human

11、Factorsa71 Risk Management/Assessmenta71 Softwarea71 Test & VerificationAdditional Info: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Approval Info: a71 Approval Date: 2002-02-12a71 Approval Name: Bill Loewya71 Approval Organization: HQa71 Approval Phone Number: 202-358-0528Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-