Data-synchronization meaning

Keeping data in two or more electronic devices up-to-date so that each repository contains the identical information. Data in handheld devices and laptops often require synchronization with the data in a desktop machine or server.One Way or Two WayOne-way synchronization is widely used for backup as well as to ensure multiple venues contain identical data (see replication). Two-way synchronization typically employs a cloud-based service that sends the latest copies of photos, videos and documents to all required machines. When a change is made in one machine, whether desktop or portable, the changes are sent to the cloud server, which typically "pushes" the data onto the other machines as long as the appropriate application is open and active in the device. See cloud storage and push technology.
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(computing) The establishment of equivalence between data collections (typically on different servers), where each data element in one item maps to a data item in the other, and their data is equivalent.
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(computing between trading partners) Data synchronization is the electronic transfer of standardized product and location information between trading partners and the continuous harmonization of that data over time.
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