Hi Les,
--- snip -- > SDT). For those > > of you not familiar with SDL: SDL is both a method and a > language developed > > for the telecom industry where you model your system as a set > of > > processes/statemachines that communicate with signals. > > Was Mr. Jacobsen of the 3 amigos fame somehow responsible for > or involved with SDL? Not to my knowledge. The standard (SDL) was defined by CCITT as early as 1989 (Recommendation Z.100) and have since been developed further by the same standard commitee to include Message Sequence Charts (advanced sequence diagrams) and more or less full support for OO-mechanisms (as polymorphism and generalization etc.). I wouldn't be surprised though if Jacobsen was involved in some way or another....For me, Jacobsen is the father of Use-Cases and the Objectory process.... > > > (SDL is also one of > > the major contributing languages in the next UML-release). > > Please clarify - I'd be most interested to learn that UML is > going to adopt SDL. > > Not the best RT modeling language IMO, but certainly a huge > step in the right direction. > Some of the most important work done in defining the next version of UML (2.0), is the definition/redefinition of the superstructure of the language. One of the major contributions here is the submission from the U2-partners (www.u2-partners.org) (where both Rational and Telelogic are members) (read it here: http://cgi.omg.org/cgi-bin/doc?ad/01-10-01). If you look at "Chapter 37 - Behavior - State Machines" for example, most of the theory here is from SDL. The proposed notation as showen for example in Figure 37-232 on page 37-341 in the document is pure SDL. Also the proposed notation for sequence diagrams (Chapter 36) is heavily based upon the Message Sequence Charts (MSCs) used with SDL. And so on. Whether SDL is the best RT modeling language or not, I wouldn't know since I've only worked with SDL. > > -- snip --- > > My point is: In my opinion, the only way to deal with > increasingly complex > > SW-systems, is for us to move to a higher abstraction level > than today, > > hence above the code-level and to the model-level. This, > combined with > > increasingly use of more abstract concepts like patterns > (architectural s > > well as design patterns) etc., will hopefully lead us to > create better > > SW-systems much faster than today :-) > > > > How is Rational XDE going to solve this problem? I don't know. I've tested XDE for C# briefly, and what I see looks good. BUT, I'm not convinced yet. Patterns seam to be well supported in XDE, but there is a long way to go from that to full 100% complete code generation from the model.... The synch-mechanism is in my opinion too manual (even though you can set automatic synch). You still treat model and code seperately (you add an XDE-model file to your VC-project, like any other file. Then you perform a reverse-engineering of your VC-project to create the model. I don't know. I still prefere the Together-approach myself. At the moment we have a discussion going with Rational on why they do not have any UML-tool at the moment that supports standard C++ developed using the Microsoft Visual Studio .NET IDE. So when XDE supports C++ (unmanaged and managed), I will look into XDE in more detail. Arne > > Les. > > ________________________________________________ > Get your own "800" number > Voicemail, fax, email, and a lot more > http://www.ureach.com/reg/tag > This email, its content and any attachments is PRIVATE AND CONFIDENTIAL to TANDBERG Television. If received in error please notify the sender and destroy the original message and attachments. ************************************************************************ * Rose Forum is a public venue for ideas and discussions. * For technical support, visit http://www.rational.com/support * * Post or Reply to: [EMAIL PROTECTED] * Subscription Requests: [EMAIL PROTECTED] * Archive of messages: * http://www.rational.com/support/usergroups/rose/rose_forum.jsp * Other Requests: [EMAIL PROTECTED] * * To unsubscribe from the list, please send email * To: [EMAIL PROTECTED] * Subject: <BLANK> * Body: unsubscribe rose_forum *************************************************************************
