Task aggregation in SharePoint 2013. How does it work. Scenarios and supportability.
One of the important features in SharePoint is the ability to have an overview of the tasks assigned to a person. With SharePoint 2013, the source of the aggregation has diversified including now Project Server Tasks, SharePoint Tasks and Exchange Tasks , all these aggregated in the special "My Tasks" view in each user's personal site.
You will find the information in this document http://www.microsoft.com/en-us/download/details.aspx?id=38799