The business analyst will often carry out further research during the sprint.
This includes gaining further clarity from the product owner, speaking to users about their experiences, or preparing user stories for the next sprint.
The BA will act as an advocate for the users and for the product owner, if they are not present.
If there is time at the end of a sprint, developers may begin to research and prepare for the next sprint.
Sometimes the DSA will plan a design sprint at the start of the build phase, so that developers can spend time researching and testing functionality. This adds significant value when we are using new technology, as the BA does not have the right skill set to prove technical capabilities. A further benefit is that developers can have time to experiment with more adventurous methods.