What is Microsoft Visio?
Visio helps you visually communicate complex information from multiple data sources:
Quickly create professional flow charts, timelines, process maps, organizational charts, IT architecture diagrams, floor plans, and more.
Keep diagram data points current by connecting diagram elements directly to data sources.
Use data graphics to simplify and enhance the visualization of complex information.
View and share the most up-to-date Visio diagrams from nearly anywhere with Visio for the web.
View and interact with diagrams on the go with Visio Viewer for iOS.Source: https://support.office.com/en-us/article/select-a-template-in-visio-75a50ce3-6f12-4cf6-9b96-5e2026b8a3fe?wt.mc_id=otc_visio