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The Tempo implementation produced during the course of the research will be made available as a toolkit , named DIPSY , which will allow the construction of distributed Internet applications in a declarative manner . Regardless of the number of class files , deployment of this web application into the servlet container is the same as deployment of the first three web applications in this lesson . The hands-on exercises include using Spectra2 features and configuring Spectra2 for various test applications in both VoIP and SS7 environments . We propose a high-level domain model for representing domain concepts , business rules about these concepts , and connections of business rules to the core application in terms of these concepts . The first three web applications in this tutorial use a poor Java programming style . In the absence of the url-phonebook-base configuration attribute , there will be no link to the Phonebook application in the Org Chart UI .