This chapter introduces the conceptual framework of delimitation methodology. It reviews the sources of the law of maritime delimitation applicable to the delimitation of the continental shelf beyond 200 nm. More specifically, it examines the elements of delimitation methodology and the formulations of delimitation methodology that evolve over time. On that basis, this chapter raises the methodological questions to be addressed in the delimitation of the continental shelf beyond 200 nm and develops the approach for their analysis, which goes beyond the prevailing three-stage approach established in the jurisprudence since the 2009 Black Sea case.