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As I know we have three base model in software modeling [Requirement, Analysis, Design], but I don't know what kind of diagrams should be in the analysis model. When someone asks me to give him Analysis model of the system, What should I give him?
An analysis model provides the information needed for the design. This includes:
class roles (Text)
use case description in terms of classes and operations
completed analysis model classes (diagram)
sub-system diagrams (package diagram)
You could basically see this as a refinement phase for the use cases aswell as containing the first initial class diagram.
As for how you would make such a model, you would start of by making a class diagram (draft). Once you have made this diagram you would have to re-examine your use cases and objects. Based on improvements you made you refine the class diagram.
This is followed by executing a check which results in more refinements of the class diagram. Finally you have to group the classes you found (decided) in packages (package diagram).
For further reading I would like to refer to this article.
In the UML analysis model, you should create a class diagram which contains the view, controller and model classes, only the view classes contains methods but all of them contains attributes, here is an example http://www.cs.sjsu.edu/~pearce/modules/projects/ooa/sunUML/am.htm
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In Lucidchart, which all data types are built in to use for attributes and parameters in class diagram?
A UML Class Diagram is simply a way to structure data about the way your code is organized. What you put into the diagram is entirely up to you and is dictated by the part of the code you are diagramming. You can try searching online for introductory guides for class diagrams that will give examples.
Within Lucidchart, absolutely any text content is valid within a UML Class Diagram shape. You will notice that the class diagram shapes contain some default text when you first add them to your diagram. This text is just an example of one notation you could use to annotate your classes and objects that you represent in your diagram. Lucidchart is just a tool that is designed to be as nonrestrictive as possible as you create your class diagram. It does not perform any logic to verify the attributes or parameters you choose to list in your diagram.
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If we imagine we are given with a domain diagram and we also have a use case.
I am struggling to understand, what exactly can we derive?
Ex domain model, found on google.
I want to get to the interaction diagrams as a result.
I think the path is, system sequence diagrams -> operation contracts -> interaction diagrams
I just dont get the logic of how to derive all this from a domain diagram because on communication diagrams we can have instance creations that comes out from no where.
Can anyone explain how to derive all this from a domain diagram (if there are steps)?
This domain model represents the static structure of your domain. It does not give any information about its dynamics (how it behaves/changes over time). Sequence diagrams and interaction diagrams model the dynamics. They cannot be derived from the domain model.
In your question, you wrote: "We also have a use case". A use case gives information about the dynamics, so maybe you can derive the sequence/interaction diagrams from the use case.
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I have come across tools like visualparadigm demo which could automatically generate code from the class diagram which is modelled in UML. Since I have no industry experience, I am curious to know whether this is the way companies start working on their projects after the system is modelled in UML. since the skeleton of the classes needed is automatically generated, I assume it is a good way to save time. If this is not the way, then why is it so?
Also Can you provide me some other tools which can automatically generate code from UML class diagrams (prefer opensource).
Are there OOP software projects which do not get started with the class diagrams, so that this method can be of no use?
Most of UML are able to generate code from UML class diagram you just have to google it and you will find them.
Concerning the way companies start working, I guess it depends of the companies but from my experience companies try to avoid useless work.
If they spend some time on modeling it is because they can use it for something for example code generation, documentation, or just because its a client request. If companies do not find any interest in modelling they simply do not use it I guess that alot of OOP do not start with models.
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You might know that Association relationship is a structural relationship which one of the classes knows about the information in another class But if you can please tell an example that I can understand it and I need to know about Realization relationship with an example ,too .
I will appreciate you if you can tell some examples.
In the UML Specification by OMG defines Realization as below:
Realization is a specialized abstraction relationship between two sets
of model elements, one representing a specification (the supplier) and
the other represents an implementation of the latter (the client).
Realization can be used to model stepwise refinement, optimizations,
transformations, templates, model synthesis, framework composition,
etc.
Also as specialized classes, there are ComponentRealization, InterfaceRealization, Substitution and InterfaceRealization is the most useful one for designing the programs.
An InterfaceRealization is a specialized Realization relationship
between a Classifier and an Interface. This relationship signifies
that the realizing classifier conforms to the contract specified by
the Interface.
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I'm learning about UML diagram and sequence diagram at the moment in one of my courses for my CS degree, and I wonder that if this is something that is common to use for developers or if this is just one of many approaches to analyse the design of the system.
I'm so used to the Waterfall model and wondering if there would be any benefits for switching my mindset.
Maybe the answer is obvious, but still think it would be interesting to hear from people that are more experienced in the area.
My first advice is not to mix concepts:
UML = modeling language.
Useful to describe/visualize the design of a system.
Waterfall model = design process.
Useful to describe in a linear-sequential manner the life cycle of a system.
This is a very short and non-deep description but ilustrates your question about the specific case of sequence diagrams, so in a real case scenario you probably will end using both like this:
-Requirement/Analysis: during this phase you will start creating some of the first UML Use case diagrams for your system.
-System Design: during this phase (or even earlier) you will start creating UML Sequence diagrams, UML Component diagrams and so on.