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

learn more… | top users | synonyms

0
votes
0answers
22 views

How can attributes/annotations be illustrated on a UML class diagram?

Many programming languages offer a way to annotate types. For instance, in .NET this can be achieved by deriving a custom attribute class from System.Attribute and then annotating another type with ...
0
votes
0answers
41 views

Correct way to do an ASP.NET MVC UML diagram [closed]

i tried researching this before asking but there is that many versions id like to get a definitive way to do an ASP.NET MVC UML Diagram, i attempted one below but i want to make sure im doing it ...
1
vote
2answers
63 views

Forming heavy use case diagram

We have a use case diagram for our software engineering course project that we have many use cases in every system and about 5-6 actors. How should we separate this heavy diagram to light weight ...
2
votes
1answer
58 views

Notifications in Use-case Diagrams

I'm writing a use-case diagram in which an actor gets a notification. My question is similar to this one except that I'm not sure if my notification use-case is a crosscutting concern. Suppose my ...
1
vote
1answer
75 views

Inheritance vs Class Diagram [closed]

What is the difference between an inheritance diagram and a class diagram in UML? For the Computer Science A Level (a British test administrated by Cambridge University, so it's possible that this ...
2
votes
0answers
37 views

Var assignment in sequence diagram

I am trying to represent the function below (PHP function/Symfony2) as a sequence diagram using UML 2.0 and Visual Paradigm: private function getVeevaHcpSync($request, $action, $case) { ...
1
vote
0answers
48 views

ER Diagram Multiplicity (UML)

Schema: #=PK Employee (#NIN, fName, lName, address, DOB, sex, salary, taxCode, deptNo) Department (#deptNo, deptName, managerNIN, businessAreaNo, regionNo) Project (#projNo, projName, contractPrice, ...
3
votes
1answer
49 views

UML: How to implement a template interface?

Suppose I have an aggregate type and I want to use it in conjunction with a template iterator. The following C# code gives an exact example of my model: public interface Iterable<T> { ...
1
vote
0answers
56 views

UML diagram for SSIS process

I'm trying to do some technical documentation and would like to include some diagrams to better explain the processes in the system. The process I'm currently trying to describe is the following: ...
1
vote
0answers
95 views

How Generate sequence diagram from xmi file

I know we can generate an xmi file from a sequence diagram, but for inverse, I want to know if we can generate a sequence diagram from a xmi file with any tool(ie write my own code as xmi file which ...
-2
votes
1answer
73 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 ...
0
votes
2answers
279 views

Different relationships between component and class diagram [closed]

How can I convert association of class diagram to component diagram? For instance what is the equivalent relationship of ->, aggregation and inheritance of UML class diagram to the component diagram? ...
2
votes
1answer
122 views

Ideas on Model of simple Traffic Simulation [closed]

I want to write a simple traffic simulation with one road intersection. First I thought of a cellular automata in the model but it should not be limited by an underlying discrete grid system so the ...
1
vote
1answer
205 views

How to represent a multiple choice attribute in UML class diagram?

I'm modelling a Filter class that stores the options for filtering a search. Some of the attributes are multiple choice. For example, if you are filtering hotel rooms you have a Price attribute that ...
1
vote
2answers
126 views

Confusion about associations in UML class diagram

--------------------- ---------------------- | FLIGHT | | STEWARD | --------------------- ---------------------- | Arrival time | | Steward ID | | ...
0
votes
2answers
77 views

My class diagram needs to model a relationship with varying quantities

I am trying to design a restaurant ordering system in UML, which should also include the stock system. One of the classes is a Dish (i.e. a dish on the menu), and another is an Ingredient. My ...
2
votes
3answers
195 views

What do I use for a variant in a UML class diagram?

Does standard UML specify how a variant (aka tagged union, discriminated union, sum type, etc) should be depicted in a class diagram?
1
vote
1answer
84 views

How to manage coupling in model classes

I'm doing a class diagram for a game project, but I'm stuck on a coupling problem. Context The projet is a turn-based game. Two users are playing. They've got units on a map. They play until 1 ...
1
vote
1answer
248 views

Designing classes the right way [closed]

I am trying to design my classes in the optimal way for the following scenario. A city has metro lines covering a number of stations.There are 4 lines represented by 4 colors.The user has to enter ...
2
votes
2answers
137 views

UML 2.0 Use case diagrams extend

I have a question regrading usecase diagram which im rather confused when to use extended and include. Ive gone through a tone of documents and tutorial and examples. But im rather confused. I have a ...
0
votes
1answer
192 views

How would you draw this UML class diagram?

I'm currently trying to learn UML but I have trouble with this one. Lets say you have a container with cards, a container with players, and that player has also cards. How would you draw this in a ...
2
votes
3answers
332 views

Which approach is right doing use case first or classes first ? why? [duplicate]

There are people who prefer to do use cases first and then do the classes, but there are also some who prefer to do class diagram first and then use cases. So is it personal choice for convenience? ...
2
votes
1answer
84 views

Questions about UML in relation to the command pattern

http://www.oodesign.com/command-pattern.html In reading through a tutorial about the command pattern, I came across a UML diagram that seems to omit some relationships. For the following diagram, the ...
0
votes
1answer
145 views

Are there two type of associations between objects or are there just different representations?

I've been spending some time on 're-tuning' some of my OOP understanding, and I've come up against a concept that is confusing me. Lets say I have two objects. A user object and an account object. ...
2
votes
3answers
975 views

UML: Queue processor in a sequence diagram

Which is the appropriate way of representing a queue processor in a UML sequence diagram? I want to represent in the same diagram two systems that are loosely coupled through a queue. The first ...
2
votes
1answer
339 views

Things developers do before the coding phase [closed]

I'm a new software developer, and in my internship my boss asked me to develop an application that allows him to manage his inventory. Something small but, for me, very enriching. The application is ...
1
vote
3answers
179 views

UML Class Diagram: How can I represent “orthogonal” generalizations (or multi-inheritence)?

I try to represent in a UML Class Diagram the following object and features: The Object: A System (e.g. an electronic device) that can be of Type A, B or C If the System is of type A, it has a ...
0
votes
1answer
95 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 ...
0
votes
1answer
97 views

What diagram would be the best to describe the situation

I am working on a software integrated with the hardware component. I need to create a simple diagram to express that: Certain activity runs in a cycle (the device continously monitor a temperature) ...
2
votes
3answers
319 views

Sequence diagrams and the Implementation

In the design phase we create UML Sequence diagrams (in OOD). My understanding is that after creating an Use Case diagram if we need to show further information in terms of time sequence of events of ...
2
votes
2answers
262 views

What UML diagram should be used for modelling permissions/users/files in Linux?

If I am planning a structure for support testing in Linux, a structure that will contain packages, such files as shell and build scripts, app configurations, DBs, sources, tests and jars for to be ...
1
vote
1answer
94 views

Should state machine with synonym states be shown explicitly?

I am new to state machine modeling and while trying to model a system, I have a question. An example will explain it better: Considering a system that does calling (probably a customized cell phone ...
3
votes
2answers
763 views

How do you show the exception handler in a class diagram?

I have one exception handler class. I want to show this class in the uml -- class diagram. But, I do not know how to represent relationship between class <X> and exception handler class. How can ...
3
votes
3answers
228 views

is it valid that a state machine can have more than one possible state for some transition?

I have a requirement for a workflow which I am trying to model as a state machine, I see that there is more than one outcome of a given transition(or activity). Is it valid for a state machine to ...
1
vote
1answer
121 views

What should be used to diagram an application's internal architecture?

I have an application that has several dependencies, including a Matlab library and a Microsoft Windows Media Player ActiveX control. How would I graphically depict the internal architecture of this ...
3
votes
4answers
434 views

Understanding UML composition better

The difference between Composition and Aggregation in UML (and sometimes in programming too) is that with Composition, the lifetime of the objects composing the composite (e.g. an engine and a ...
1
vote
0answers
57 views

How to model an optional input to an activity?

I am constructing a UML 2.0 activity diagram. The activity is to evaluate data from a usability study of a prototype. It can optionally end with just getting the user satisfaction results. But if the ...
0
votes
2answers
108 views

Buyer vs Seller on UML Model

I'm modeling an Online Classified System where, naturally, who sells also can buy and vice-versa. The question is: should I have two different Actors, Buyer and Seller or I could have, say, an actor ...
3
votes
1answer
88 views

Access items of a container with a pattern

I've two C++ classes with a relation: a container class which has a list of items. For example a library has got many books. The classes are the library and the book. Now from the external world I ...
2
votes
2answers
269 views

How deep is enough to represent an algorithm in UML sequence diagram?

I have three simple classes. LoginController, UsersCatalog and User. UsersCatalog has an array of User. I have to represent a simple process of login. LoginController has a method login(username, ...
1
vote
0answers
95 views

How to implement 'use case control' object in (iOS) MVC?

In an MVC architecture pattern (for e.g., in iOS) there is a controller per view. In UML there is a concept of having Control object per use case to encapsulate an use case, which may span more than ...
0
votes
1answer
62 views

UML Diagram for Locations of Components

I am about to deploy a new project that will have different components being deployed on different servers and in different web sites/technologies/etc. I was just wondering what would be the best way ...
1
vote
2answers
122 views

How to handle long method names in sequence diagram?

I have a C# application that is developed with VS 2010 pro. The ultimate version would have a sequence diagram feature. Since I will "create" my sequence diagram manually, how do I deal with quite ...
3
votes
2answers
199 views

UML class diagram: how to annotate observer-subject relationship?

How can I annotate in a UML class diagram that an instance of ClassA is registered as an observer of an instance of ClassB? (Both implement the appropriate interfaces). This doesn't really belong in ...
0
votes
1answer
688 views

UML class diagram - instantiation dependency relationship: who depends on who? [duplicate]

I did some reading on the <<instantiate>> relationship in UML class diagrams. It's a dependency relationship where one side depends on the other. However, I'm not sure who depends on who: ...
0
votes
1answer
75 views

What's the difference between model for test and model for development?

What's the difference between model for test and model for development? Is it that the model for test contains only what we should test? Do we use the same diagrams in model for test and model for ...
0
votes
1answer
269 views

I want to draw class diagram, but I don't know how to put server and database inside? [closed]

I just started to draw class diagram, I think it is based on 3-tie architecture. I have mobile application, servers, database, and web interface. But I do not know if it should put the server in? I ...
2
votes
2answers
8k views

UML class diagram notations: Differences between Association, Aggregation and Composition

I'm confused about some of the notations of UML class diagrams. Pretty sure I know what Association means. Any relationship between instances of two classes, where an instance of one class needs to ...
2
votes
1answer
244 views

UML class diagrams: How to show dependency

Please consider a program with four classes: Class A, B, C and D. Classes A and B are subclasses of abstract super-class C. Class D is dependent on C. Meaning: It holds a C objectOfTypeC field. As ...
-1
votes
1answer
208 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 ...