Zen includes several packages of classes. The following table describes a few of them.
Contains the classes that define the Zen non-SVG user interface components.
Contains the classes used to implement Model portion of the Zen Model-View-Controller mechanism.
Contains datatype classes for use when defining Zen properties.
Contains the classes that define the Zen Report framework for generating PDF and XHTML reports.
Contains the classes that define the Zen SVG components.
For a thorough discussion of the Zen runtime architecture, read Zen Pages at Runtime in the Zen Client and Server section of Using Zen.