A engenharia reversa no Visio 2013 foi removida, de acordo com o blog do Visio: link
Deprecations
The new software and database diagramming capabilities in Visio represent a departure from the capabilities of previous versions. We place a strong emphasis on diagramming and sharing instead of rigorous modeling. Specifically, there is no ability to generate a diagram from existing code or a database definition. Also - just like in recent releases - there is no ability to go from diagram to code or database. Existing UML and Database diagrams can be opened in the new Visio, but they are effectively frozen for editing since the previous feature set has been removed. The behavior of existing diagrams is equivalent to the experience you get today when opening them in Visio 2010 Standard.
Existem alternativas:
- Use o Visio 2010. Nota: Se estiver vinculando ao SQL Server 2012, siga esta sugestão.
- Visual Studio usando o Entity Framework 1 : link