Reporting Services Components and Tools

SSRS processing is distributed across multiple components. Central and
specialized processors are used to retrieve data, process report layout, render
presentation formats, and deliver to target destinations. Presentation processing
occurs after the data is retrieved and is decoupled from data processing, which
allows multiple users to review the same report simultaneously in formats that
are designed for different devices. Additionally, users can quickly change the
report's viewing format, from HTML to PDF or Microsoft Excel or XML. The
modular architecture is designed for extensibility. Developers can include
reporting functionality in custom applications or extend reporting functionality to
support custom features.

Best Regards,
Hossein Karimi