How did the nature of NASA's agreements with SpaceX evolve compared to traditional government contracting?

Answer

They illustrated a move toward performance-based service purchasing

The relationship shifted away from older government contracting models toward purchasing services based on achieving specific performance outcomes, such as the fixed-price model used in Commercial Resupply Services (CRS).

How did the nature of NASA's agreements with SpaceX evolve compared to traditional government contracting?
NASASpaceXspace explorationpartnership