Abstract: A business rules engine works with an optimization engine through various user interfaces to facilitate increased efficiency in retail space planning. Rules and models are built from templates that are stored in a repository. Business analysts and retail space planners both have access to the repository to develop models and rules. A project consists of a selection of rules and models from the repository along with selected data from various data sources. A scenario is created for the project by specifying constraints, parameters, and optimization objectives. The optimization engine processes the scenario and attempts to find an optimum solution. when a perfect solution (100%) cannot be found, the optimization engine evaluates the various criteria in the scenario and relaxes requirements until an acceptable solution is found. The output of the optimization engine can automatically be provided as graphical visualizations such as plan-o-grams, graphs, charts, and other forms.