Which metric is commonly used to assess software quality?

Assessing software quality involves looking at multiple facets of how well the software meets its intended purpose and the satisfaction of its users. Defect density is a crucial metric that indicates the number of defects per unit of code, helping to quantify the reliability and stability of the software. A lower defect density typically suggests higher quality, as this indicates that there are fewer errors present in the code.

Customer satisfaction scores complement the technical measurements by providing insights into the user experience and how well the software meets the needs and expectations of its users. High customer satisfaction usually correlates with a quality product, as it reflects the users' perception of the software’s performance, usability, and overall effectiveness in solving their problems.

Together, these two metrics provide a meaningful and comprehensive view of software quality, making them widely accepted in software engineering practices. The other options do not directly measure quality in a comprehensive or relevant way. For instance, code execution speed alone does not address all facets of software quality, while team meetings and project duration focus more on the processes rather than the outcome of the software itself.