application layer

application layer

(networking)

The top layer of the OSI seven layer model. This layer handles issues like network transparency, resource allocation and problem partitioning. The application layer is concerned with the user's view of the network (e.g. formatting electronic mail messages). The presentation layer provides the application layer with a familiar local representation of data independent of the format used on the network.

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application layer

The processing in a network protocol that provides the starting point and purpose of the communications session. The application layer is layer 7 of 7 in the OSI model. For example, email, Web browsing and video streaming applications reside at layer 7. See TCP/IP and OSI model.

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