Visual map items may each be constructed and placed in position using logic defined by a map view component corresponding to each visual item, where that logic may depend on one or more values populated into parameter(s) of the map view component. Some of those parameter values may correspond to known map model parameter values. Others, however, may have been solved for using a model that defines analytical relationships between the map model parameters. In one embodiment, which of the map model parameters are input variable, and which are output model variables, may not be predetermined. Accordingly, a solver might be prepared for multiple solve operation paths even using a single model. The map view composition process may be entirely data-driven, and may include a mechanism for canonicalizing input data, and binding canonicalized input data to the model parameters.