Which innovative product development approach did NASA use for the James Webb Space Telescope that revolutionized how complex astronomical instruments are designed and tested?

The James Webb Space Telescope (JWST) represents one of the most ambitious and complex product launches in the history of astronomy. This marvel of engineering faced numerous development challenges, delays, and innovations before its successful deployment. Test your knowledge about this revolutionary space observatory's development journey and what made its product launch so unique in scientific history.

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Pathfinder Development Approach - building a full-scale testing model before the final product to identify and mitigate risks
Rapid Prototype Deployment - launching smaller prototype versions to orbit before committing to the final design
Open Source Engineering - publishing all designs online and incorporating suggestions from the global scientific community
Digital Twin Technology - creating a virtual replica that experienced simulated deployment before the physical launch