MATH.1:4.1 - Choose objects and generating arrows
Write the objects at which the elementary steps start and end. For each generator a, give a source s(a) and a target t(a). Several generators may have the same source and target.
Include conditions that determine the availability of the selected continuations. A location may be enough for one problem; another may require a pair such as (location, permission). Use a failed attempted continuation to find the needed distinction. There is no requirement to anticipate every possible future operation.
The generating arrows and endpoints form a directed graph in the mathematical sense. A drawing can display it, but the vertices, arrows and endpoint functions define the structure. A physical network or an organization’s work may be interpreted through this graph; that application supplies its own claims about what the arrows can represent.