WebSphere Application Server V7.0: Concepts ... - IBM Redbooks

Composition
Configuration
EJB
Module
Business
Logic
JAR
Java
Library
Web
Module
WAR
Figure 3-12 Business level applications
BLA1
DB2
Database
JAX-WS
Web
Service
Module
BLA3 BLA2
Portlet
Module
Java
Library
Java EE
Enterprise
Application
Axis2 PAR JAR EAR
CICS
Transaction
A business level application has the following characteristics:
► Is a configuration that lists one or more composition units, which represent
the application binary files
► Might not explicitly manage the life cycle of every artifact
It is a model for defining an application and does not represent or contain
application binary files
► Can span more than WebSphere Application Server deployment target
runtimes, such as a proxy server, a Web server, WebSphere Application
Server Community Edition, and so on
► Provides the following management features for applications:
– Install
– Distribute
– Activate
– Monitor
– Update
– Remove
► Supports Application Service Provider (ASP) scenarios by allowing single
application binaries to be shared between multiple deployments
About ASPs: An ASP is a company providing information technology and
computer-based services to its customers. Software created using the ASP
model is also called on-demand software or software as a service.
Chapter 3. WebSphere Application Server concepts 71