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Topics - zyx

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General Board / Classifiers and classes
« on: July 15, 2010, 04:34:05 am »
Hello all,

    Again I apologize for my bad english.

    What is the difference between classifiers and classes? A class is a kind of classifier but a classifier not necessarily is a class. A classifier is a mechanism that describes behavioral and structural features, but a class donít describes it too?

    I read that a classifier is an abstract metaclass, but a metaclass is a class whose instances are classes. It is not more correct to say a metaclass is a classifier whose instances are classifiers?

    A use case, by example, is defined by a metaclass, but a use case is not a class, a use case is classifier.

General Board / {from use case model}
« on: May 28, 2010, 10:38:32 am »
Hello all,

    Again I apologize for my bad english.

    I have copied a sequence diagram from a use case to another package of my project and now there is a text "{from use case model} in this diagram... Someone knows how to take it off?

General Board / Enumeration
« on: April 24, 2010, 02:06:11 pm »

   Again I apologize for my bad english. I am creating a enumeration class, but when I was using the previous version when I defined the literals it appeared on top of the list a <<enum>> stereotype and in this version it do not appear any more, besides the field stereotype remains with the text enum correct. If I change the stereotype it appears on the top, but nothing appear when the stereotype is <<enum>>... why?

General Board / Dot
« on: April 16, 2010, 08:42:49 am »

    What is the function of the Dot in association ends? Someone can give me a practical example?

General Board / Breaking the text of an use case
« on: April 15, 2010, 11:03:23 am »

   It is possible to force the break of the text of an use case in order to this text appear in two lines?

General Board / Moving Diagrams to Others Projects
« on: April 13, 2010, 01:19:48 am »

   Again I apologize for my bad english. It is possible to move a diagram of a project to another project? I mean take a diagram of a project and put it in another project in other EAP file.

General Board / Messages in sequence diagram
« on: February 22, 2010, 11:23:50 am »

   Again I apologize for my bad english... I am trying the new version of EA and when I do a return message returning data (not calling a method), EA puts a "()" on the end. How I can change it?

General Board / Graphical stereotypes
« on: January 17, 2010, 12:59:21 pm »

    I want to use the stereotype named stereotype in a class, but in EA its a graphical stereotype. When I apply this stereotype, it appears just the "<< >>" symbol and I want that it appears the word "stereotype"... Someone knows how I can change it?

General Board / Moving elements from a diagram to another
« on: January 13, 2010, 11:56:35 pm »

   It is possible to move a element from a diagram to another? I mean to really move, not to do a copy. By example, I have a class in a diagram and I want to move it to other class diagram. How can I do it?

General Board / Actor Stereotypes
« on: January 13, 2010, 12:26:44 am »

    I am trying to use a stereotype in an actor at the use case diagram, but when I define the stereotype it do not appear together the actor name. Someone knows how to do it?

General Board / Project Browser
« on: January 12, 2010, 06:55:23 am »
Hello All,

   I am with troubles with my project browser... It's marked in the view menu but I can't see it. I already desinstall Enterprise Architect but this window remains marked and do not appear... Someone has any idea how I can fix it?

General Board / About profiles
« on: January 05, 2010, 04:58:33 am »
Hello All,

    If I derive a new metaclass from another metaclass may I modify the semantics in the new metaclass? By example, if I want to represent a software agent like an actor I have to create a new metaclass from the actor metaclass to represent the agent, because agents are internals to the subject and actors are external to it, so I question, a metaclass derived from an old metaclass can have the original semantics modified?

General Board / Use Case Metamodel
« on: January 03, 2010, 05:29:19 am »

    In the UML 2.1.1 Superstructure Document, on page 598 is the Use Case Metamodel - the metaclasses of this diagram. In there I saw there is two relationships between the UseCase and Extend Metaclasses, the left relationship is a composition and the right a association. The same occurs with the Include Metaclass. I cannot understand why two relationships, what is the function of its two relationships? Just one is not enough?

General Board / Usage relationship
« on: January 01, 2010, 08:45:49 am »
Hello All,

   I apologize for my english, I am brazilian. Is the usage relationship used yet or it was deprecated? I saw examples with this relationship where there was a <<uses>> stereotype, but I cannot produce it in EA.

General Board / Actors in sequence diagram
« on: October 08, 2009, 12:17:42 am »

    I apologize for my english, I am brazilian. I received the information that actually actors do not make part of the sequence diagram. They belongs only to the use case diagram. The use of actors in the sequence diagram is only a convention, in the metamodel UML actors exists only in the use-case diagram, so using actors in a sequence diagram is wrong?

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