At the end of a Sprint, activities such as sprint review and sprint retrospective occur. Software development is an ongoing process throughout the Sprint and not specifically an end-of-sprint activity. Similarly, quality assurance testing happens throughout the Sprint, integrated into the development process to ensure a high quality of deliverable. However, release deployment is often planned but not necessarily executed at the end of each Sprint; it typically occurs according to a separate release schedule. Thus, software development and release deployment do not specifically occur at the end of the Sprint.