[[Explain embedding a scripting engine in existing application to achieve flexible combination of fixed elements. This raises questions: which scripting engine to embed? How to do so? What does this make possible?]] [[Three examples of approach in conventional [Java]-oriented application development: "Tcl your Java apps" [http://www.javaworld.com/javaworld/jw-03-2001/jw-0323-tcl.html?] and "Tips for Scripting Java with Jython" http://www.onjava.com/pub/a/onjava/2002/03/27/jython.html] and, by same author, "Introduction to Jython" [http://www.oreilly.com/catalog/jythoness/chapter/ch01.html].]] [[Much need interesting write-up of hardware-oriented embedded examples--space shots, submarines, factory controllers, ...]]