What Does SQL Server Integration Services (SSIS) Mean?
Microsoft SQL Server Integration Services (SSIS) is a part of Microsoft's SQL Server that intends to make data migration easier. It is designed for data integration and workflow for extract, transform and load (ETL) operations used in data warehousing. It replaces Microsoft's earlier Data Transformation Services starting with Microsoft SQL Server 2005.
Techopedia Explains SQL Server Integration Services (SSIS)
SQL Server Integration Services is a data migration tool that comes with Microsoft SQL Server. It contains a number of tools for data migration. The tool lets developers build packages that move data from one database to the other. One major feature is a wizard for data import and export that can work with a variety of data types without transformation. This makes SSIS very useful for data warehousing. Users can write their own custom operations on data beyond the included wizards.
SSIS packages can be developed and edited in the Business Intelligence Development Studio with an interface similar to Microsoft Visual Studio.
All of these features make SSIS very useful for data warehousing and extract, transform and load operations.