A Traffic Flow Management TFM framework for analyzing the operational use of and generating requirements for constraint data has been proposed. Constraint data requirements need to be generated in the context of TFM Modernization TFM-M, TFM-En Route system engineering coordination via the Domain Integration Plan DIP, and the future concept of System Wide Information Management SWIM. The framework identifies a lifecycle for constraint data as it is used operationally, and includes key attributes and exchange needs that should be defined for an instance of constraint data. Initial examples of constraint data analysis and scenario development have been generated by the DIP activity. Further analysis and scenario development, along with requirements and costbenefit analysis, will contribute to work packages. The work packages will be developed to identify the evolution and phasing of, and generate requirements for, new and integrated capabilities. This framework should be validated, either through formal review and feedback, or as part of the analysis and work package development process.