Building in 64-bit systems running Linux, Solaris, and HPUX, Aonix’s TeleUSE 4.0 user interface management system allows cross-platform Motif GUI application development. The object-oriented program supports WYSIWYG graphical editing, widget design editing, and font, color and pixmap picture editing. The environment exhibits support for interactive development, design, debug, and maintenance of applications containing a Motif GUI using a template facility for constructing user interface elements, and a dialog scripting language for implementing logic. The software works with third-party Motif widgets, including XRT Professional Developer’s Suite and the HPUX operating system for the Itanium processor. The system includes 64-bit TeleUSE runtime libraries and the associated C/C++ header files for using compilers, such as Sun Studio 12 on either SPARC or Intel/AMD 64, Solaris 10, and GCC 4.1.2 on Linux.