An Application Server is another new name for `MIDDLEWARE' that
supports.
1) business logic
allows your business apps / procs to talk to each other
2) presentation
a web server, wap server.
3) transactions
4) authentication
5) confidentuality
6) security
7) interprocess communication
i) business logic
i) technological (e.g. EJBs)
You need all these to be viable e-commerce provider.
--
Peter Pilgrim
G.O.A.T
"The Greatest of All Time"
---------------------------------------- Message History
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From: [EMAIL PROTECTED] on 06/11/2000 11:11
Please respond to [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
cc:
Subject: Re: Difference between Application Server and Web Server [Scanned
by Yellow Pages PostMaster]
Contact: Tel: 2726 - New Media Systems, 1st Floor South, Queens Walk
My understanding of this (correct me if I am wrong):
An application server is a web server but can do more. An application server can
manage multiple applications on a web server. These applications can be
independent of each other or inter related. An application server can shutdown
or reload an application of that web server without effecting other applications
running.
For instance, the tomcat is an appliaction server where each application can be
independently and separately deployed. Removing an application is a matter of
modifying the server.xml and remove the related directory completely.
Netscape server is a web server but not an appliaction server because the server
itself does not provide any means for you to manage multiple applications. You
will have to do this on your own.
In general, most of the triditional web servers, including Java Web Server, are
not application servers.
All other features of the web server are also supported by the application
server. There is a new trend that an appilcation server also provides an IDE for
the web developers, some even have an integrated database from which all the web
pages or servlets or EJBs are generated and stored. Application data can also be
sin this database or in a separate database. A typical one I have seen is the
SilverStream.
Charles
[EMAIL PROTECTED] on 11/06/2000 05:35:37 AM
To: [EMAIL PROTECTED]
cc: (bcc: Charles Chen/YellowPages)
From: [EMAIL PROTECTED], 6 November 2000, 5:35 a.m.
Re: Difference between Application Server and Web Server [Scanned by Yellow
Pages PostMaster]
Hi Arun,
Few diff as i knew:
Web Server:
A Web Server is an advanced application which runs on a server and does
the following:
provides connections to remote computers sends web pages to remote computers via
the Internet or anIntranet
It uses a client / server model. Every computer that has a web site must
have a web server program running or the files should be sent to the computer
that has a web server running.
Examples of Web Servers:
MS Internet Information Server for Windows NT
Netscape Enterprise ServerAn Application Server :
An application server is designed to help make it easier for developers
to isolate the business logic in theirprojects (usually through
components) and develop three-tier applications. Many application
servers also offer additional features such as transaction
management, clustering and fail-over, and load balancing.
BFN
Nagarajan
---------------------------------------- Message History
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From: [EMAIL PROTECTED] on 06/11/2000 05:10 GMT
Please respond to [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
cc:
Subject: Difference between Application Server and Web Server
Hello can any one tell me the difference between an
application server and an web server
Arun
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