Some systems / frameworks / CASE tools have the feature that they will, with a "little or no effort" automatically generate CreateReadUpdateDelete functionality for you: That is, screens (or modes) that enable the users to Create, Read, Update, and Delete objects/records.
This can save lots of development time (and money) on the 80-90% or so of data that does not need a specialized custom interface for routine maintenance.
One has to be careful because generated code is sometimes not easy to maintain on its own. Other caveats are raised in CodeGenerationIsaDesignSmell
Examples of such tools:
corix 4i is something very similar to NakedObjects. It's available at http://www.corix.ch
(100% German. No English translation. That's a little tough on little ol' me. ;-)
I have been interested in automatic generation of screens for a while, particularly using Java Reflection as a starting point. I really like the idea of NakedObjects and ExpressiveSystems. Their demo framework is not great, so I have been developing a JavaSwing based version called Expressive, which is available at http://expressive.sourceforge.net/.
-- IanNeill
For a CrudAutoGenerator to be called "functionally complete" should be able to deal with the IrreducibleComplexityEntityModel, sadly, some of the CrudAutoGenerator in the market right now (JbossSeamGen for example) are not really able to deal with all the different kinds of relationships that are represented in the IrreducibleComplexityEntityModel.
See also: CrudScreen, CodeGenerationIsaDesignSmell, RapidApplicationDevelopment, TheRadBottleneck