Modeling Web Application Architectures with UML
By: Jim Conallen, Rational Software. All Rights Reserved.
June 1999
A version of this material appears in the October 1999 (volume 42, number 10)
issue of Communications of the ACM.
A PDF version of this article
is available, however, have
Adobe Acrobat
installed to view it. You can download other Rational Unified Process (RUP) white papers from the
IBM Web site.
Abstract
Web applications are becoming increasingly complex and mission-critical. To
help manage this complexity, they need to be modeled. UML is the standard
language for modeling software-intensive systems. When attempting to model Web
applications with UML, it becomes apparent that some of its components don't
fit nicely into standard UML modeling elements. To stick with one
modeling notation for the entire system (Web components and traditional
middle tier components), UML must be extended. This paper presents an extension
to the UML using its formal extension mechanism. The extension is designed
so that Web-specific components can be integrated with the rest of the system's
model, and to exhibit the proper level of abstraction and detail for suitable
for designers, implementers, and architects of Web applications.
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