System and method for building testing and integrating a graphical dynakey user interface

A builder, tester, and runtime integration method for a Point-Of-Sale, Windows DynaKey TM , or equivalent, interface that is less expensive than previous methods because: human interface and software personnel work in parallel in building and modifying the interface using NICE customized DKItem/DKList objects, a significant amount of interface maintenance is done without ever changing the runtime code since the interface is external, much of the code for the builder program and tester program is general-purpose, and most of the complex, event-driven runtime code is reusable.