1. A method for creating a visualization of a plurality of simulation models, said method including: analyzing, by a computer for creating said visualization of said plurality of simulation models, dependency data from said plurality of simulation models, each of said plurality of simulation models having a model identifier; determining, first variables within a first subset of said plurality of simulation models, wherein said first subset of said plurality of simulation models is impacted by said dependency data, wherein said plurality of simulation models simulate outcomes, effectiveness, penetration, utilization, and distribution of marketing strategies based upon at least one of historic, current or probability data of said marketing strategies, and wherein said dependency data depends upon and includes records having an identifier that is based upon said model identifier and that depend at least one of directly or indirectly from a simulation model of said plurality of simulation models; analyzing, by said computer, said dependency data relating to said first subset of said plurality of simulation models; determining second variables within a second subset of said plurality of simulation models, wherein said second subset of said plurality of simulation models is impacted by said dependency data, wherein said second subset of said plurality of simulation models is dependent upon said first subset of said plurality of simulation models, and wherein said dependency data relates to a transfer of information exchanged between at least one of said first variables or said second variables, and at least one of said first subset of said plurality of simulation models and said second subset of said plurality of simulation models, wherein said information includes accuracy of said information, an amount of said information, a transfer rate of said information, a processing rate of said information, and usage data for each of variable types; determining, by said computer and based upon said model identifier, inter-dependencies of model identifiers across said plurality of simulation models; propagating, by said computer, and based on said model identifier and said inter dependencies, a change to a select variable to at least one of said first subset of said plurality of simulation models or said second subset of said plurality of simulation models; reading, by said computer, model data that includes last usage date for each of said plurality of simulation models; categorizing, by said computer, each of said plurality of simulation models according to said last usage date and variable usage type; and creating, by said computer, said visualization of said plurality of simulation models according to said categorization, wherein said visualization shows dependencies of said plurality of simulation models based upon said dependency data, wherein said dependencies are based upon how said plurality of simulation models utilize said first subset of said plurality of simulation models and said second subset of said plurality of simulation models.