1、Lessons Learned Entry: 1024Lesson Info:a71 Lesson Number: 1024a71 Lesson Date: 1997-02-01a71 Submitting Organization: HQa71 Submitted by: David M. LengyelSubject: International Space Station (ISS) Program/Command and Data Handling/Firmware Documentation Description of Driving Event: Inadequate Proce
2、dures for Documenting Firmware Placed in ISS ComponentsLesson(s) Learned: NASA does not have procedures in place for documenting the firmware that is placed in ISS components, particularly for devices that were grandfathered from Space Station Freedom.Recommendation(s): NASA should ensure that all f
3、irmware code, particularly that grandfathered from Space Station Freedom, is properly documented and archived for future reference. Further, NASA should ensure that it retains the rights to such software.Evidence of Recurrence Control Effectiveness: NASA agrees with the recommendation. Direction to
4、deliver copies of the documentation (requirement, design, test, etc.) of the firmware controller software prepared as part of their software development process is being given to each vendor. A library will be established in the Software Development and Integration Laboratory (SDIL) at the Sonny Car
5、ter Training Facility. In addition, as part of the sustaining engineering activity, a plan is being developed to bring the qualification firmware controller units to the IV&V Facility and provide a capability to use these controllers instead of math models when required to support anomaly resolution
6、 or testing.Documents Related to Lesson: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N/AMission Directorate(s): a71 Exploration Systemsa71 Aeronautics ResearchAdditional Key Phrase(s): a71 Aerospace Safety Advisory Panela71 Configuration Manageme
7、nta71 Safety & Mission Assurancea71 SoftwareAdditional Info: Approval Info: a71 Approval Date: 2001-11-20a71 Approval Name: Bill Loewya71 Approval Organization: QSa71 Approval Phone Number: 202-358-0528Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
