A strategy-maintenance system comprises a memory, an interface, and a processor. The system is operable to store a plurality of templates. A template comprises a statement that facilitates writing one or more strategies. The system may further communicate to a first computer the plurality of templates for presentation on a first graphical user interface. The system also receives a first selection of at least one of the plurality of templates for a strategy. The strategy is operable to calculate a key value based on at least one of the plurality of templates. The system finally executes the strategy to calculate the key value and communicates the strategy for execution on a remote machine.