I saw this article before, and I think of it as quite strange.
First it doesn't explicitly mention the name of the framework that is
presented, so you have to find out for yourself. Second there are no
links to the listings, although they are available on the same website.

But let's look at the wizard framework itself (which appears to be
Gandalf, gandalf.sourceforge.net). There are some things in the design
of the framework I don't understand:
1. Why is the Swing version based on JFrame? I would consider JDialog as
a better base class, except maybe for setup wizards.
2. Why construct a new JFrame for each form? Wouldn't it be better to
keep the same window and only replace the panel where the user enters
data and adjust the title and the status of the buttons. This way there
would also be no need to use static attributes to keep the data of the
wizard.
3. There doesn't seem to be a straightforward way to set the buttons
disabled or enabled, based on the data entered by the user.

In fact, the Wizard framework of Visionary Technologies
(http://component.v-tech.ws/products/jwizard.htm) seems to offer all the
features I'm looking for (although I didn't really use is yet), but I'm
not willing to use a non open source tool, since I want to keep the
freedom to open source the software I'm working in the future.

Thanks a lot,

Axel Hallez