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Topics - zyx

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General Board / Class compartments
« on: August 01, 2018, 04:42:34 am »
Hello all,

    I was reading the UML specification 2.5.1 and in the page 194 I read that "A Class has four mandatory compartments: attributes, operations, receptions (see 9.2.4) and internal structure". However in EA I can only represent attributes and operations compartments. How can I represent the other two compartments?

General Board / Showing constraints
« on: July 11, 2017, 10:19:21 am »
Hello all,

     I can define a constraint to an attribute in a class, but I want this constraint appear aside to the attribute in the class. Someone knows how can I do it?

General Board / Object Diagram
« on: May 15, 2017, 10:32:44 am »
Hello all,

    In an object diagram I can drag a class from the project browser and it becomes an object in the diagram. But I don't know how to show its attributes. Someone can teach me how to do it?

General Board / Conectors in activity diagram
« on: April 29, 2017, 05:56:29 am »

     Someone knows how to put a conector in the activity diagram. I saw examples of a circle or a square with a letter inside to referenciate another part of the diagram, but I don't discover how to define it.

General Board / Interaction occurences in communication diagrams
« on: April 17, 2017, 07:06:11 am »

     It is valid to use interaction occurences (or interaction uses) in Communication Diagrams? I know that it is common in sequence diagrams, but the same is true to communication diagrams? It is correct to refer to another communication diagram by means of interaction occurences?

General Board / Repository and Dao Classes
« on: April 01, 2017, 10:32:38 am »

    Someone has some example of sequence diagram containing lifelines from repositoy and dao classes in a interaction? I mean the steps to an entity lifeline be persisted and recovered by means of repository and dao lifelines.

Hello all,

    There is a tool or option that allows to convert a sequence diagram into a communication diagram?

General Board / Persistent Classes
« on: December 30, 2016, 01:52:41 am »

    There is a way to show a class is a persistent class? I mean graphically, I know that in the class properties I can set it is persistent.

General Board / MVC
« on: December 28, 2016, 09:42:15 pm »
Hello all,

    I am trying to understand the MVC pattern (again). In my original understanding the View Layer represents the system interface and basically communicates the events to the control layer. The control layer should interpret the events and call the appropriate methods defined in the classes of the model layer and pass the results to the view layer. The model layer contains the classes representing the problem domain and containing the business logic methods.

    But I saw other texts and examples where the classes classes have only attributes and getters / setters methods and the logical business was placed in the control classes. It confused me and I thought I was modeling in the wrong way. But keep searching and I read texts that asserts the model layer must contain the logical business methods and entities that  have only getters / setters methods are "anemic" entities classes.

    So I ask, what is correct? In a bankary system, by example, methods like openAccount, deposit and withdraw should be in the model layer (I think so) or in the control layer?

General Board / Sequence Diagram - Lifelines
« on: December 27, 2016, 10:34:44 am »
Dear all,

    Again I apologize for my bad english...

    I am modeling a sequence diagram and I have dragged a control class to the diagram. I set the control class instance as a lifeline and I set its stereotype as control. The only problem is that the name of the class appear to be too long and the ":" is showed a line above the name of the class... Can I configure the tool to change it?

Uml Process / Control Classes
« on: December 26, 2016, 05:37:22 pm »
Dear all,

   As always I apologize for my bad english ...

   I learned that in the MVC standard the logical business methods must be placed in the control classes. Well I had a model where I was putting these methods into entity classes and I tried to create some control classes and I transferred the methods to them, but I realized that some methods will be repeated in more than one control class (I have created a control class for each use case), for example it is necessary to validate the password in more than one process. What should I do in this case? I think it's wrong to repeat the same method in more than one control class ...

General Board / Stereotypes and tags
« on: December 09, 2016, 09:30:08 am »
Dear all,

    As always I apologize for my bad english...

    Is it possible to associate tags to a stereotype? If so, how can I do it?

General Board / Extension Points
« on: June 01, 2016, 06:28:53 am »
Hello all,

    As always, I apologize for my bad english...

    Is there a way to modify the text "extension points"? I mean I want to put a text before the text "extension points" in an use case. Is it possible?

General Board / Boundary, control and entity classes
« on: February 11, 2016, 04:47:27 am »
Hello all,

    It is valid to represent boundary, control and entity classes in a same model or it is mandatory to represent each kind of class in a separate model?

General Board / Union and subset
« on: February 05, 2016, 04:59:47 am »
Hello all,

     My apologies for my bad english...

     I got to define that an role is a derived union, but I can not define that a role in a association with a subclass is a subset of that union. I did not found where I can define it. Someone can help me in it?

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