SSRS - (Report|Document)
About
A report is an XML document that complies with the report definition language (RDL) schema and includes a description of how data should be presented by a report renderer.
A report includes the following elements:
Body. A description of the items included in the report and how they should be formatted and presented.
Data Sources. Connection information to access the data sources where the data for the report is stored. Data sources can be embedded in the report, or stored in a separate file and shared across multiple reports.
Datasets. Query definitions that determine the data fields presented in the report. Each dataset is associated with a data source, and can be embedded in the report or stored in a separate file and shared across multiple reports.
The easiest way to create a report is to use the Report Wizard.
Articles Related
Rendering
Xml
Outline
View > Other Windows > Document Outline (Ctrl + Alt + T)
Template
Template are report project without data and are local placed in the ReportProject directory of Visual Studio.