Computing legend speaks of legacy data as a heaving hydra with many heads, any one of which can give an enterprise a nasty gnaw - even when its fellows have all been bludgeoned. Legend tells us legacy data is immortal and practically indestructible, although it can be tamed - even harnessed, if properly treated. Perhaps legacy data's true monstrousness lies in the definition, given that no two experts seem able to agree on what legacy data is. The only point of consensus over definition is that most enterprises have data in many places that was created at different times, incurring varying burdens and costs on the IT function; that when data exists in an obsolete format, or requires archaic stored procedures, we can call it legacy, is undisputed.
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