A decision support tool is a software application or system that helps individuals or organizations make informed decisions by providing data analysis, modeling, and visualization tools. These tools are typically used in a variety of fields such as business, healthcare, and government to assist in complex decision-making processes. Decision support tools combine data from various sources, apply algorithms and analytics to this data, and present recommendations or insights in a user-friendly interface. Users can then use this information to evaluate different options, anticipate outcomes, and make more informed decisions.