What type of testing occurs at an external site to assess system satisfaction regarding user needs?

The scenario described in the question pertains to beta testing, which is typically conducted at an external site. During beta testing, actual users outside of the development team use the product in their own environment. This real-world testing phase allows for feedback regarding user satisfaction, usability, and overall experience with the system before it is officially released. The primary goal is to assess how well the software meets user needs and expectations.

This feedback is crucial because beta testing helps identify any issues that may not have been uncovered during earlier testing phases due to differences in user environment and usage patterns. By gathering insights from a broader audience, developers can improve the product significantly prior to its final release.