JX is a full-featured C++ application framework and GUI widget library for use with the X Window System. It provides support for all facets of application development, including distributed applications, and aims to combine the best of MacOS and NeXTSTEP. It is built directly on top of Xlib and has been carefully optimized for performance.
Libsx -- the Simple X library -- is a lightweight wrapper library sitting on top of the Athena Widget set, as implemented in Xaw and variants (Xaw95 yields much nicer results than Xaw in comination with libsx). Libsx does not compete with GTK or Qt, but nevertheless allows you to write a lot of small (or bigger) programs painlessly, with no or little knowledge of X programming. With libsx, writing a simple program that opens a window, has a few buttons, and draws some graphics (lines, circles, bitmaps, etc.) is a matter of 5-10 lines of code, including the drawing code. Hello World is 2 lines. More complicated programs that respond to mouse clicks, have buttons, scrollbars, file browsers, a color selector, etc., can be written in 25-50 lines of code.
OIO is a Web-based metadata/data management front-end which is built using Zope and works with Postgresql. No programming is required to build and manage Web-forms or to perform data mining/analysis on the collected data. It is in production at the Harbor/UCLA Medical Center for clinical outcomes management and research data. Forms created with OIO and hosted on any OIO server can be downloaded as XML files. Once downloaded from the "Forms library" and imported into an OIO server, the necessary database tables are automatically recreated and the imported forms become immediately available to the users of that OIO server.
Open Motif Everywhere is the standard distribution of Open Motif built from the official Open Group sources for Open Motif. It has been ported to all popular Linux (and BSD) environments. Most modern distributions of Linux and BSD include the stable release. Annual support contracts are also available.
Motif is the industry standard graphical user interface (GUI) available on more than 200 hardware and software platforms. It is the de facto graphical user interface on UNIX systems in heterogeneous networked computing environments. Motif is fully specified by the IEEE 1295 standard, providing application developers, system vendors, and end users with a stable, mature and reliable environment for application presentation on a wide range of platforms. Motif is also the base graphical user interface for the Common Desktop Environment (CDE) and a number of other desktops.