Organization core business processes captured in numerous information systems applications get retired and replaced. The reason could be,
Organizations or individuals change computer systems or upgrade to new systems.
Mergers and acquisitions. Legacy system Modernization.
Enterprise application consolidation, implementation, or upgrade.
Companies are seeking well-managed storage systems to comply with regulatory requirements.
Irrespective of whatever the driving force it is, no organization want to scrap or loose the data. The obvious reason behind it is this data was used for several years to define the very existence of the same business. Instead the information must be massaged and tailored for the new system, thereby safeguarding the history and linking with the new or enhanced system. This process of transferring data between storage types, formats, or computer systems is called Data migration.