Your First Cup: An Introduction to the Java EE Platform

Tiers in the Example Application

The example application has one web tier component (the firstcup web client) and two business tier components (the DukesAgeResource web service and the DukesBirthdayBean enterprise bean). The user's web browser is the client tier component, as it accesses the rest of the application through the web tier. The example application does not access the EIS tier.