"The process of extracting data from operational systems to a data warehouse with minimal effect on the source systems, and the transformation of the source data into a format consistent with the design and requirements of the data warehouse." (Microsoft Corporation, "Microsoft SQL Server 7.0 System Administration Training Kit", 1999)
"The movement of data from one storage system to another." (Tom Petrocelli, "Data Protection and Information Lifecycle Management", 2005)
"Form- and function-preserving movement of data between locations or formats, which can take one of three forms: (1) from one physical system or location to another; (2) from one physical format to another; or (3) from one logical format to another." (David G Hill, "Data Protection: Governance, Risk Management, and Compliance", 2009)
"The process of migrating data to or from an application such as moving data from a sales force automation tool to a data warehouse." (Tony Fisher, "The Data Asset", 2009)
"The process of transferring data from one database to another." (DAMA International, "The DAMA Dictionary of Data Management", 2011)
"Moving a specific set of data from one system to the other. It contains a source system where the data resides prior to the migration, criteria determining the scope of data to be migrated, a transformation that the data will go through, and a destination system where the data will be inserted after." (MuleSoft)
"The process of moving data between two or more storage systems, data formats, warehouses or servers." (Solutions Review)
"A Data Migration is the process of transferring data between computer storage systems or file formats. They greatly range in scale and can often be significant projects including numerous preparation and reconciliation activities." (experian) [source]
"Data migration is the process of moving data between different types of storage or file formats. Cloud data migration refers to transferring or replicating data from on-premise systems to cloud-based storage." (Qlik) [source]
"Data migration is the process of moving a specific set of data from one system to the other. One system is the source system where the data resides prior to the migration, and one system is the destination system where the data will be inserted after." (kloudless)
"Data migration is the process of transferring data between data storage systems, data formats or computer systems." (Techtarget) [source]
"Data migration is the process of transferring data from repository to another." (Information Management)
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