What is a primary goal of system integration testing?

The primary goal of system integration testing is to ensure that systems work together as intended. This phase focuses on the interactions and interfaces between different system components, as well as how they integrate with one another in a larger environment. It aims to identify issues that may arise when integrating multiple systems or components, which can include data exchange, communication protocols, and overall functionality when the systems are working in concert.

This testing phase is critical in Agile development because software is typically built in iterations, allowing for frequent integration of new features and functionalities. By confirming that various parts of the system operate collaboratively without errors, stakeholders can be more confident in the quality and reliability of the software before it is deployed.

In contrast, evaluating user interface design pertains more to usability testing, assessing the performance of individual components is typically handled during unit testing, and finalizing software release documentation relates to a different aspect of the software development lifecycle, focusing on product readiness rather than integration.