Application retirement,also calledapplication decommissioning[1]andapplication sunsetting,is the practice of shutting downredundantor obsolete business applications while retaining access to the historicaldata.Legacy applicationsare often maintained solely to provide infrequent or sporadic access to data within the applicationdatabasefor regulatory or business purposes. With some organizations spending upwards of 75% of theirapplication softwarebudgets on ongoingmaintenance,[2]application retirement can deliver significant cost savings.
The act of application retirement usually involvesmigrating datafrom the legacy applicationdatabaseto anotherdata repositoryorarchivestore that can be accessed independently usingindustry standardreporting orbusiness intelligencetools. Application retirement allowsITdepartments within companies to reduce the software, hardware and resources required to manage legacy data.
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