The Unified Modeling Language is the industry standard for modeling software-intensive systems.

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1answer
48 views

Compatibility between Class Diagram and Sequence Diagram

Do the message being passed between objects in Sequence Diagram match with the methods in Class Diagram?
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3answers
1k views

UML representation of type being passed as a parameter

I want to draw a UML diagram of my program. Class Barney has a method Yabadaba(Doo d) which takes a parameter of type Doo. How do I represent that class Doo is used in class Barney in my UML diagram? ...
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83 views

In UML is it correct to have an association class with a composition or aggregation relationship?

An example of an association class is given here: http://pic.dhe.ibm.com/infocenter/rsarthlp/v9/index.jsp?topic=%2Fcom.ibm.xtools.modeler.doc%2Ftopics%2Fcassnclss.html Composition and Aggregation ...
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2answers
477 views

Object inheritance and method parameters/return types - Please check my logic

I'm preparing for a test and doing practice questions, this one in particular I am unsure I did correctly: We are given a very simple UML diagram to demonstrate inheritance: I hope this is clear, it ...
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4answers
396 views

Software for requirements and use cases [closed]

I am looking into some UML modeling software, which there is plentiful of on the market, but only a few I found support recording of requirements and written use cases (not the diagrams yet). Are ...
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1answer
124 views

What is meant by a step-by-step refactoring plan describing implementation of design [closed]

What is meant by a step-by-step refactoring plan describing how to implement a certain design? As little as I know about refactoring it regards improving a (UML) design model and has nothing to ...
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3answers
252 views

How important is it to learn UML for an OO developer? [closed]

When studying OOP by myself I often encounter UML class diagrams. I understand them, but don't completely know how to write them. Meaning, I don't entirely know what each kind of arrow means, and ...
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1answer
150 views

Should I label class diagram variables as private or public?

In my program, I have several class variables whose access specifier is known as private package. The default accessor specifier in Java is known as private package where it is accessible within the ...
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1answer
57 views

How do we design a good website, not graphical? [closed]

I always created an application without proper design before creating it and having a very hard to manage code which I don't want to touch it again. I understand to create a system we have these ...
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1answer
486 views

Sequence diagram should consist of View objects, DB objects, etc.?

I read many articles, and saw a lot of images and I can't answer the question whether objects of View classes or DB classes should be contained on the sequence diagram or it should be more ...