It all starts with understanding what question you're looking to answer. What assumptions are you making? What hunches need backing up? Once that's clear, we then look at the different sources of data that can help answer the question! These might be one single set (i.e., a survey), or multiple sets (survey, plus focus groups, plus interviews, for example), depending on the challenge.
This data is interrogated - where are the gaps, what trends can we see, what are we missing? And a set of actions and recommendations emerge.
Together, we'll workshop these findings for you to implement. This may be a one-off project, or it might be that this provides a benchmark that you can return to at different intervals during the year, to see how and where improvements have been made.