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Dew Helps Ground Cloud Computing

EurekAlert (09/15/15)

A “cloud-dew” architecture could enable cloud users to maintain access to their data when they lose their Internet connection, says University of Prince Edward Island professor Yingwei Wang. He notes the architecture follows the conventions of cloud architecture, but in addition to the cloud servers there are “dew” servers held on the local system that act as a buffer between the local user and the cloud servers.  Wang says this configuration prevents data from becoming desynchronized, which happens if one reverts back to the old-school approach of holding data only on the local server whether or not it is networked.  “The dew server and its related databases have two functions: first, it provides the client with the same services as the cloud server provides; second, it synchronizes dew server databases with cloud server databases,” Wang notes.  The dew server retains only a copy of the given user’s data, and the lightweight local server makes the data available with or without an Internet connection and synchronizes with the cloud server once the connection is established.  Wang says the architecture could be used to make websites available offline.

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