MISC. Flashcards
What are the 3 dimensions of systems engineering?
People, processes, technologies
Architecture is the ____ between needs and scoping.
Link
Name 4 Space Qualifying Tests:
- Fit Check
- Modal Survey
- Thermal cycling
- Thermal vacuum
The project plan describes:
The who, what, when how, and how much of a project.
Pros and Cons of Matrix Organizational Model:
Pros:
- wide range of talent working on project
- Only need to pay for personnel on a need basis
Cons:
- sharing management with another manager
- workers only on project temporarily (require acclimation)
List some risk “trigger questions”:
- Do the designs or requirements push the current state of the art?
- Has an independent cost estimate (ICE) been performed?
- Is the schedule adequate enough to handle changes in the requirements or objectives?
- Have we identified facilities for all environmental tests? (space env tests)
” ____ _____” capture risk lessons learned in the past.
Trigger Questions
List some inputs to a typical cost model:
- Weight
- Quantities
- Complexity factors
- Analogous data points
We want the S-Curve to ______ as a project matures.
Tighten.
What happened with the NOAA-N failure?
- people forgot to tighten the bolts on the stand, satellite fell over
- engineers moving the satellite that day did not go through proper verification process for safety
- $ 135 Million Mistake
- Pushed timeline back 5 years
What happened with the FIA project?
Future Imagery Architecture
- poor systems engineering
- project cost estimation poor
- poor project scheduling and phasing
- poor technology readiness assessment
- project cancellation
Gentry Lee’s List:
- Intellectual Curiosity
- Ability to make system wide connections
- Comfortable with uncertainty/unknowns
- Healthy paranoia
- Good team member and leader
- Self confident and decisive
- Appreciation for process
- Two-way communicator
- Diverse technical skills
- Comfortable with change.
- Ability to see the big picture
Name some design fundamentals:
- make temporary questionable decisions
- KISS
- descoping
- use independent peer reviews
What happened with the genesis mission?
G-switch installed incorrectly
- Verification reqs not clear enough
- Function was verified, but not output
- did not validate/verify because it was a FULL HERITAGE DESIGN
Gold rule for heritage designs:
Test it as if it were new, brand new design.
