SSRS Report with Shared data source and Shared datasets | Part 3

SSRS Report with shared data source and shared datasets:
Requirements: SQL SERVER 2012 AND SSDT tool for SSRS.
In SQL Server Reporting Services (SSRS), shared data sources and shared datasets are used to manage data and queries for reports.
Shared data source:
A set of connection properties that can be used by multiple reports, models, and subscriptions. Shared data sources are optional for reports and subscriptions, but required for models.
Shared dataset:
A query that can be used by multiple reports and is stored on the report server. Shared datasets are managed separately from reports and shared data sources.