[Uml-devel] [ uml-Feature Requests-661811 ] composite states

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Feature Requests item #661811, was opened at 2003-01-03 14:49
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Category: Diagram drawing
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Vadim Nasardinov (el-vadimo)
Assigned to: Nobody/Anonymous (nobody)
Summary: composite states

Initial Comment:
I am using umbrello-1.1rc1 for Red Hat 7.3.  There does 
not seem to be a way to create nested substates in state 
diagrams. This significantly reduces the expressive 
power of statecharts. 
 
In his book "Constructing the User Interface with 
Statecharts", Ian Horrocks provides a very good 
explanation of why simple state transition diagrams are 
inferior to David Harel's statecharts, which is what the 
UML state diagrams are based  upon. Horrock's book: 
http://www.amazon.com/exec/obidos/tg/detail/-/0201342782 
 
Some example diagrams with nested substates: 
http://www.informatik.fh-luebeck.de/~st/UML/UML1.1/notation9.html 
 
Thanks for the otherwise wonderful tool. 
 
Vadim 
 

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