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Data migration is the process of moving data from one (old) system to another (new) system. Various issues can occur depending on the file format, data structure, and other issues. Data migration is closely linked to compatibility issues, as the data may also be stored on old media (e.g. floppy disks, tapes, ZIP drives, etc).
Data migration can be as simple as putting a file on a USB flash drive and opening it on another computer. • It is can also be very complex involving big databases exchanging information across countries into different time zones.
An interesting perspective and look into time zones
Possible problems that may arise
• Incompatible file formats
• Data structure differences
• Validation rules
• Incomplete data transfers
• International conventions on dates, currencies & character sets