  n., The process of translating from one to another. Data migration is necessary when an organization decides to use new
computing systems or that is incompatible with the current system. [General Dictionaries] 
n., The process of copying data from one information system or storage media to another to ensure continued access to the
information as the system or media becomes obsolete or degrades over time. [General Dictionaries] 
n., The process of copying data from one information system or storage media t