Of the three prominent windows displayed when you open a new Integration Services project, only the Solution Explorer is completely new, and had no equivalent in the DTS Designer. By default, a new Integration Services project contains a single package file, named package.dtsx, but you can also add items of other types, which are grouped in the following Solution Explorer folders.
The shortcut menus available on these folders generally let you add a new item to the folder, whereas the shortcut menus available on individual items in the folder let you open the item, copy, delete, or rename the item, or exclude the item from the project. The View Code shortcut menu option available on most folder items displays the XML definition of the selected item.
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Data Sources folder. A data source represents a connection that can be shared among multiple packages in a project. You can create a connection manager in a package from an existing data source. For more information, see Using Data Sources in Packages.
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Data Source Views folder. A data source view represents a subset of the data in a data source, and can also contain named queries. Data source views can be shared by multiple packages in a project. You can designate tables, views, or named queries from a data source view as the source of data for a data flow source. For more information, see Using Data Source Views in Packages.
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SSIS Packages folder. A package represents an organized collection of connections, control flow elements, data flow elements, and other objects. The package is the unit of work in Integration Services that provides and supports extraction, transformation, and loading (ETL) functionality. A single project can contain multiple packages. The shortcut menu available on the SSIS Packages folder lets you do the following:
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Add a new or existing package to the project.
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Run the SQL Server Import and Export Wizard to jumpstart creation of a new package.
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Run the Package Migration Wizard to migrate existing DTS packages.
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Run the SSIS Package Upgrade Wizard to upgrade SQL Server 2005 Integration Services (SSIS) packages.
In the SSIS Packages folder, packages have a shortcut menu. This shortcut menu lets you designate a package as the startup object in the project, run the package, and perform other maintenance tasks.
For an introduction to packages, see Integration Services Packages.
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Miscellaneous folder. If you add files of other types to your Integration Services project, such as documents or images, these files are grouped in the Miscellaneous folder.
By default, when you create a new project, Business Intelligence Development Studio also creates a new solution as a container for the project. You can add more projects to the same solution, such as an Analysis Services project or a Reporting Services project, or a C# or Visual Basic .NET Class Library project in which you can develop custom components to use in your packages. Unlike Analysis Services and Reporting Services, Integration Services provides only a single project type in Business Intelligence Development Studio—the Integration Services project. For more information about Integration Services projects, see Integration Services Projects.