Application Service Element <networking> (ASE) Software in the {presentation layer} of the {OSI} seven layer model which provides an abstracted interface layer to service {application protocol data units} (APDU). Because {applications} and {networks} vary, ASEs are split into common services and specific services. Examples of services provided by the {common application service element} (CASE) include remote operations (ROSE) and {database} {concurrency control and recovery} (CCR). The {specific application service element} (SASE) provides more specialised services such as file transfer, database access, and order entry. Csico docs (http://cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/osi_prot.htm). (2003-09-27)