The core framework of your early-in-production research will be the "dramaturgy packet", which will be given out and used as a reference during the remainder of the process in conjunction with your feedback. As a dramaturg, you are the person most dedicated to finding relevant information and distilling it down to its bare essentials for the benefit of the production. However, there is no one codified standard for how you present your research, so peruse a wide variety of methods and literature on the practice and see what works best for you and your show.