This document examines the architecture behind the early access version of the Adventure Builder Sample Application, which focuses on using the latest Java 2 Platform, Enterprise Edition (J2EE™) 1.4 technologies. For recommendations and guidelines on architecting and designing enterprise applications, see Designing Enterprise Applications With the J2EE Platform, Second Edition. For recommendations and guidelines on architecting and designing Web services, see Designing Web Services with the J2EE Platform.