Has the definition of what "Executable UML" is been agreed upon by the various 'Shlaer-Mellor approach using UML' companies and consultants? The captial "E" in...
... This depends upon what you mean by "agreed upon." If you mean the general issue of "classes, state models, and actions" then there has been agreement for...
Some comments on the synchronous versus asynchronous issue raised by Tanja Fulde. The Executable UML, all objects run concurrently, conceptually on its own...
Responding to McNeile... Curiously, every place you used quotes was removed in my Netscape Reply copy. Another vote for standardization. ... I am less...
H. S. Lahman
h.lahman@...
Jul 10, 2002 4:15 pm
14
A reply to my Drano drinking friend... I think you are right that this is a judgement call. I think there is a trade off between the price of having an...
Responding to McNeile... ... That was certainly true the last time I did MIS (ca '75). But I believe there is a paradigm shift underway today. With the...
H. S. Lahman
h.lahman@...
Jul 12, 2002 3:16 pm
16
... Real Time ... Systems, and ... not ... etc.). ... to ... modelling ... believe ... DB ... like ... When I started managing IT projects (after years in...
Two purposes for Executable Models Some of the discussion on this group has made me think more about the purposes of executable models. It seems to me that...
Responding to McNeile... ... Just out of curiosity, are the customers viewing the actual model simulation (e.g., event logging, etc.) or are they simply...
H. S. Lahman
h.lahman@...
Jul 14, 2002 3:56 am
19
Reply to comments by H. S. Lahman ... I think that model validation should be done at an early stage in the life-cycle, almost certainly before the final...
Responding to McNeile... ... Clearly it should be done as early as possible. However, FWIW, I have always regarded the UI specification as part of the...
H. S. Lahman
h.lahman@...
Jul 15, 2002 5:38 pm
21
Responding (properly) to H.S. Lahman . . . ... I think that IS architectures based on middleware/EAI principles are moving to more of a separation of the front...
Responding to McNeile... ... I mean both. B-) It seems to me that if the user wants to validate the software in a back box manner, the user would be...
H. S. Lahman
h.lahman@...
Jul 17, 2002 5:18 pm
23
Responding to H.S. Lahman Excellent stuff! An interesting and enjoyable debate. I have a few further comments which I will post in due course. Other Topics In...
hi, In chapter 7, the section other langauges specifically lists Tall and Small as alternatives. But there wasn't any formal name given to the action language...
... and ... the ... anywhere ... to ... Most of the examples in the book use the BridgePoint Action Language, sometimes referred to as BPAL or OAL (Object...
Hi, The example in the book for reflexive associations for modeling sequences is not very clear (See Figure 6.19). How does a reflexive association used in...
... reflexive ... The reflexive association is R3: Authorship PRECEDES Authorship and Authorship FOLLOWS Authorship. We say that it models a sequence because...
Hi, I am working on a very simple system in which there are events and event items. (An event is an actual meeting that is held on a location and event items...
There are actually a number of items in this message and I'm expecting that the members of our little (but growing) group will have some lively opinions on my...
Responding to Kazmeez... ... I am not quite sure I understand the need for subtyping Event. It seems to me the basic model is 1 0..* Event...
H. S. Lahman
h.lahman@...
Jul 19, 2002 3:57 pm
31
... Well I'm currently involved in modeling a number of security related domains (such as authentication, authorization, auditing, login services, etc) using a...
Ashley A very clear exposition of the issues. Thanks! My personal feel is that both are equally important. But if I had to pick one I'd go with (b) code...
... That could be a consequence of all the vendors who've jumped in claiming to be doing MDA. I went to a seminar on MDA where several tools were demonstrated,...
... <snip> ... My reading of the MDA stuff is that the PSM is the *result* of applying a transformation based on a platform architecture (partially expressed...
Responding to Nedunuri... ... I think it is mostly a question of who initiated MDA and why. The goals of MDA are much broader than UML or even OOA/D/P....
H. S. Lahman
h.lahman@...
Jul 21, 2002 5:21 pm
36
Responding to Nedunuri... ... I just noticed a crucial typo: PSM -> Platform Specific Model. ... Right, the PSM is clearly an application specific model for a...
H. S. Lahman
h.lahman@...
Jul 21, 2002 5:21 pm
37
The book website (http://www.executableumlbook.com) now contains a chapter-by-chapter listing of errors and omissions along with their corrections. Marc J....
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