Goals: Always identify the goal of the project before diving in. Why does the business need a user-centric approach and the deep insights that only user research can uncover?
Evidence: Given the grand goals that the business has, what is presumed right now? What evidence do stakeholders have? What are the high-level hypotheses that can inform your research plan? What sounds right and what does not? Take anything the business states as a given with a massive spoonful of salt as businesses are rarely right about their customers or users – that’s precisely why they need your UX help.
Cost & timeframe: While you want to research the product or service space continuously and endlessly, you often need to determine the minimum amount of research needed to inform the next steps due to costs and timeframes. While time and cost awareness deserves its own book, I usually advise juniors to work backwards from the goals and outcomes in order to pick the appropriate methods, activities and otherwise set pace for the research effort.
Users: Target the right audience involved in the current experience and outline who the new user experience will be for. Consider who the users are and how you will find them– you wouldn’t want to design without research or to do the research on the wrong subjects. The availability of said users – admin and planning to get access to them – can be time-consuming so it’s important that it’s not overlooked.
People behaviours vs attitudes: the division here does not mean that you must pick one or the other. You need to cover both. Business stakeholders usually have some notion of their users’ attitudes and only a hunch about their real-life behaviours.
Quant vs qual: as with the previous point, the “vs” represents division, not a choice between the two. A lot of designers start with quant and follow up with qual. In practice, that’s a good enough general approach for beginners. Still, as you grow into authentic UX specialist shoes, you’ll need to be able to both drive with quantitative measures (where necessary), as well as do research for qualitative insights to truly understand the depth of issues.