Sources Sought Transportation, Department of Federal Aviation Administration is seeking engineering services for the development of a new system called Tactical Scheduling Metering Tools (TSMT). This system will replace the current Time Based Flow Management System (TBFM) and provide Time Based Metering (TBM) services to the National Airspace System (NAS). The purpose of this market survey is to gather industry input to support the FAA in developing the TSMT acquisition strategy and defining the technical requirements. The FAA is interested in industry-recommended traffic flow management solutions not currently captured in the draft functional analysis document. The FAA plans to leverage current industry trends such as Service-Oriented Architecture (SOA), cloud-based systems, DevOps practices, containerization of applications, and the use of Open Geospatial Consortium Standards and Geographic Information Service (GIS). Interested companies are requested to provide information on their experience in creating mission-critical software applications, their high availability/failure tolerance strategy, experience in developing APIs and using API management tools, experience in providing standalone applications that can be integrated with other applications, experience in large-scale data migration and synchronization, capability to deliver the functions provided in the functional analysis document, recommendations for increasing the role of machine learning and automation, industry standards to consider, and their approach to managing and verifying the quality of services. The FAA is also interested in companies' experience related to TBM, TBO, or equivalent scope of work, experience working on multi-award contracts, obstacles anticipated for managing development, implementation, and operations and maintenance under a single contract, methods for maintaining low defect rates, experience with rapid development, change management processes, and common development platforms used in the past. Interested parties must submit their responses electronically by August 30, 2024. The primary contact for this procurement is Jennifer Dinwiddie-Gamble, Contracting Officer.