Visio diagrams can be rendered by Visio Services and viewed in a Web browser. This lets users view Visio documents without having Visio or the Visio Viewer installed on the local computer. This also allows diagrams to be viewed on mobile devices.
Basic exploration and navigation of these rendered diagrams are supported within the Visio Web Access Web Part. Page designers can configure the user interface and functionality of the Web Part.
Visio Services can also refresh the data and recalculate the visuals of a Visio diagram hosted on a SharePoint site. This enables published diagrams to refresh connections to various data sources and to update affected data graphics and text fields.
Visio diagrams can be published to SharePoint Server 2013 by using Visio Professional 2013 and Visio Premium 2013.