Middleware for Internet Transaction Applications

The Application Server

WWW

• Platform-independent software model– Access by variety of devices– Cuts cost of accessing systems– Reduces time and effort to reach info

Transaction Applications

• Traditionally run on conventional client/server environments– high level of security– high level of reliability– high level of scalability

Middleware

• To offer a “client/server” level of security and dependability for thin clients, the Application Server product was developed, which is designed to act as an intermediary between thin clients on the web and databases.

Dynamic Content

• Application Servers allow users to access dynamic databases– Transaction processes– Resource allocation– Transaction coordination

The Process

Tapping into Services...

• Users access info via browser, while the Application Server provides integrated security, reliability, and scalability…

• …Incorporating:– Java– COM (component object model)– CORBA (common object request broker

architecture)

An Application Server Must:

• Provide Operating System services

• A Component Model

• Monitor transactions

• Provide a web server

• Broker messages

The Interface

The Application Server Solution

• Deploys real business apps on the Web

• More flexible and robust

• Lower cost

• Unifies various systems of an organization

Resources

• BYTE Magazine 7.98 Core Databases

• www.olab.com - Oracle’s website