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IBM WebSphere V5.0 Security - CGISecurity

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Basic business drivers<br />

A few business drivers that have been addressed on the implementation level in<br />

the ITSOBank sample application are provided with this book:<br />

►<br />

►<br />

►<br />

►<br />

►<br />

Application end users need to interact directly with business process provided<br />

by the application.<br />

There are multiple applications taking part in the solution; these applications<br />

need to be integrated.<br />

Application interface is Web-based.<br />

Single delivery channel is provided for the Web application that enables<br />

business process.<br />

Business process latency must be reduced to a minimum, and back-end<br />

integration will be necessary to support Web enabled business processes.<br />

IT drivers<br />

A few IT drivers that have been addressed on the implementation level in the<br />

ITSOBank sample application provided with this book are as follows:<br />

►<br />

►<br />

►<br />

►<br />

►<br />

System provides Single Sign-On across different applications.<br />

Application is structured in layers, with separate presentation logic, business<br />

logic, and data and enterprise integration logic.<br />

Users’ directory is centralized and accessible for all applications.<br />

<strong>Security</strong> context is propagated across entire business process.<br />

Administration and maintenance costs should be as low as possible.<br />

Based on these drivers, the first decision that we made is that the base for the<br />

sample application should be a combination of the Self-Service business pattern<br />

and the Access Integration pattern.<br />

11.2 Selecting Application patterns for ITSOBank<br />

Application patterns show the principal layout of the application, focusing on the<br />

shape of the application, the application logic and associated data. This section<br />

summarizes the decisions made for selecting Application patterns from a<br />

business point of view and IT/technology point of view.<br />

11.2.1 Application pattern for Self-Service business pattern<br />

A decision was made to use Directly Integrated Single Channel application<br />

pattern for the ITSOBank sample application.<br />

Chapter 11. <strong>Security</strong> in Patterns for e-business 353

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