Internet-based systems or web-based information system, is an information system that makes use of Internet and web technologies to deliver information and services to users. The main purpose is to publish and maintain data by using hypertext-based principles.
In developing Internet-based
systems, stake holders have learned they must confer language differences. For
example, a system may have to port old COBOL application to java, reconcile
interface incongruity, and interface with server-end legacy applications.
Many languages tools frame works
are available for developing internet-based or web based systems. At the moment, the
application server frame work emerges to be the most preferred method of users and vendors, also
following the spirit of the Internet, customers are demanding open system, they
do not want to be tied to a single vendors technology.
One open system language standard, java has evolved from a proposed client-side programming standard to a server-side application development standard as a result of internet demands.
One open system language standard, java has evolved from a proposed client-side programming standard to a server-side application development standard as a result of internet demands.
An Application Server is a software framework that provides both facilities
to create web applications and a server environment to run them.
An application server acts as a set of components
accessible to the software developer through an API defined by the platform itself.
Types of Application Server
1. Java Application Server
2. PHP Application Server
Functions of Application
Server
Business Logic
Processing. These
components are basic, reusable building blocks for applications and might take
the form of applets or Java-Beans.
Automation of
Low-level Processes. The application server can generate networking and
communication code, and code for a wide range of lowlevel functions including security, session pooling, and database connectivity.
This capability can drastically reduce the time needed to code an application,
increasing programmer productivity by as much as 75 - 80%.
Middleware. The application
is the central point of integration for all Internet-based systems.
Application
Development. With
the IDE an integral part of the application server, companies can build many of their client-server
application server.
Prebuilt
Components. Vendors
of application servers now have prebuilt
components, such as tag libraries, servlets,
JavaBeans, or, in the Microsoft world,
components based on the component object model. All in
the bid to increase programmer productivity.
No comments:
Post a Comment