Write UML for application that implemented by  JHeadStart

Can you give me some idea to write UML in Design specification for Application implemented by JHeadStart ?
What UML look like ?
What are contents in Design specification for JHeadStart Configuration ?
What is specification for preparing business components ( BC ) ?
if you have a sample , please send me a email .
[email protected]
thanks in advance

I'm definately not an authority on using UML on projects where powerful frameworks and/or productivity boosters such as JHeadstart are used. In my humble opinion, design specifications get more valuable the more explicitely they provide the kind of input the chosen development frameworks and tools need during the implementation phase. With all due respect (and I am sure I am offending a lot of UML adapts with this statement), UML seems to provide the right input for a system where most of the (Java) code will be created manually. But you, me and many others have wondered what type of UML would help creating, for instance, a JHeadstart application (but really the same goes for any development toolstack where much less Java coding is required, and a large part of the development process is done by configuring third-party software, rather than creating your own).
The easiest way (and I have seen this done often) is by focussing the UML specification on the Use Case descriptions, which are, pretty much, free-format documents where things like screenshots but also sorts of "instructions" can be provided such as "Table layout with the possibility to drill down to an individual record", more often than not knowing that the implementation toolstack will have a way to provide that (such as setting the JHeadstart "Layout Style" property to "table-form"). Purist will argue that a UML design should be as independent as possible of the implementation technology, though. But as I said, this is what I have seen done quite often.
For many of the other UML specifications and diagrams, such as for instance Class models and Sequence diagrams, I have seen situations where the UML teams went very far and very 'low-level' in their designs, specifying pretty much how each aspect of the architecture should be layed out, and what the protocols for communication between the various parts of the architecture are. This can prove quite a mismatch with the frameworks chosen for the implementation (whether for persistence, controller-duties or UI aspects), rendering a significant portion of the UML design useless. In my (again, very humble) opinion, a good Design specification should still be valid AFTER the application is built, for instance for a third party doing maintainance on the application later. Speaking from my own personal experiences in this matter, this is something I have seldom seen in projects where many frameworks and/or productivity boosters such as JHeadstart were used.
I hope this is not the end of this thread, I very much welcome anyone who has maybe the same but preferably an opposite opinion, to share it here with us!
Kind regards,
Peter Ebell
JHeadstart Team

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