ARTICLE
application server
Part of the application layer of an
AS ABAP . The application layer
can be distributed to several application servers, these are usually
instantiated on different computers whose operating systems do not need
to be identical. However, several application servers of one or more
AS ABAP may run on one computer. Application servers communicate
with the presentation layer , the
database layer , and with each other
via the message server . The
most important components of an application server are its
work processes , the number and
type of which are determined when the ABAP-based
SAP System is started. An ABAP program
is executed by a suitable application server work process. The storage
areas of an application server, which can be accessed in the ABAP
programs, are the shared memory , the
SAP memory , the
ABAP memory and the
roll area in the
internal session .
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Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved