The OpenUDDI project is focused on creating a high performance, easy to use UDDI v3 compliant server and client library. The server and client is built using Java, version 5 for the server and version 1.4 for the client. The server uses Hibernate, and supports a wide variety of SQL databases, as well as LDAP for data storage.

One of the most useful things you can do when designing any presentation layer is to enforce Separated Presentation. Once you've done this, the next step is to think about how the presentation logic itself is going to be organized. For a simple window, a single class may well suffice. But more complex logic leads to a wider range of breakdowns.