This first draft of a Decision Lattice (technically called a Formal Concept Lattice) visualises the scenario decision matrix following the input of data from the High and Low Temperature actions in the tables given. The lattice is to be read from top to bottom – at each node, the green text captures the set of observations triggering that node (so far). A corresponding action at the node is in the grey/black text. (Technically, the actions were input as the rows/objects for the context, while the factors influencing the actions were given as columns/attributes). This is subject to refinement as the decision matrix (in spreadsheet form) is refined. Some duplicates are present because the actions in some cases are the same for some differing parameters; this is likely to change as the triggers for each scenario (and the relationships between them) are refined.