Abstract: A specification language allows a user to define platform-independent user interface panels without detailed knowledge of complex computer programming languages. The specification language is referred to herein as a Panel Definition Markup Language (PDML), which defines tags that are used in similar fashion to those defined in Hypertext Markup Language (HTML), that allow a user to specify the exact location of components displayed in the panel. A graphical editor allows the creation and modification of platform-independent user interface panels without programming directly in the specification language. A conversion tool may be used to convert platform-specific user interface panels to corresponding platform-independent user interface panels. A help generator tool also facilitates the generation of context-sensitive help for a user interface panel.