The Steiner System is a method used in combinatorial design, particularly in the construction of Steiner triple systems. It involves organizing a set of elements into groups, or blocks, such that every pair of elements appears in exactly one block. This system is named after the mathematician Jakob Steiner, who contributed to the field of combinatorial mathematics. In a Steiner triple system, each block contains three elements, and the arrangement ensures that all possible pairs of elements are covered. This system has applications in various fields, including statistics, experimental design, and network theory, where efficient grouping of data or resources is essential.