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In computer science , synchronization refers to one of two distinct but related concepts: synchronization of processes , and synchronization of data. Process synchronization refers to the idea that multiple processes are to join up or handshake at a certain point, in order to reach an agreement or commit to a certain sequence of action.

Synchronization (computer science)

http://en.wikipedia.org/wiki/Synchronization_(computer_science)
GDP Composition By Sector and Labour Force By Occupation Service economy can refer to one or both of two recent economic developments: The increased importance of the service sector in industrialized economies . http://en.wikipedia.org/wiki/Service_economy

Service economy