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

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1answer
434 views

How to design software when using BDD?

I'm working on a project right now and it's my first project using BDD. Up till now, the user stories have proven themselves a very valuable weapon to understand requirements and to specify the ...
3
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3answers
417 views

What diagrams, other than the class diagram and the workflow diagram, are useful for explaining how an application works?

I am working on a small Delphi project, composed of two units. One unit is for the GUI, and the other for data management, file parsing, list iterating and so on.. I've already made a class diagram, ...
2
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2answers
331 views

Is this usage of extend relationship in a use case diagram correct?

On this picture: Does updating grades extend a feature that shows grades? I am not sure if the notation is correct, so I am hoping you guys will know it.
3
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2answers
9k views

What does the arrow mean in a Class Diagram?

I need help trying to understand what the meaning of the arrow in a UML Class Diagram is, more specifically in this Composite Diagram. What's the difference between the simple line (from a class to ...
1
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2answers
326 views

How show Attributes which appear In Many To Many association

As we know a many to many association are shown by two asterisks in both end of association. Now I have a association between two entities "Good" and "Invoice" so Good and Invoice have a many to many ...
3
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1answer
426 views

The Meaning of Unified in UML

UML and other related modelling languages are exists in most of the system engineering fields to represent the system, flow, relations in a structured way. UML also is one of the modelling language ...
3
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6answers
266 views

Should UML be used before or after a basic Program Design

UML Diagrams take time and even though they provide knowledge about program design, the design changes and so do requirements, and hence it becomes a chore to keep UML Diagrams in Sync with code. I ...
5
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3answers
2k views

How to learn to draw UML sequence diagrams [closed]

How can I learn to draw UML sequence diagrams. Even though I don't use UML much I find that type of diagrams to be quite expressive and want to learn how to draw them. I don't plan to use them to ...
12
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4answers
5k views

Are UML class diagrams adequate to design javascript systems?

Given that UML is oriented towards a more classic approach to object orientation, is it still usable in a reliable way to design javascript systems? One specific problem that I can see is that class ...
11
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6answers
1k views

How to Be a Software Engineer?

My problem is kind of weird so please bear with me. I have been working in a start up concerned basically with mobile development since my graduation 2 years ago. I develop apps for iOS but it's not ...
2
votes
1answer
937 views

Is my sequence diagram correct?

NOTE: I am self studying UML so I have nobody to verify my diagrams and hence I am posting here, so please bear with me. This is the problem I got from some PDF available on Google that simply had the ...
1
vote
1answer
1k views

Is my use case diagram correct?

NOTE: I am self studying UML so I have nobody to verify my diagrams and hence I am posting here, so please bear with me. This is the problem I got from some PDF available on Google that simply had the ...
1
vote
1answer
362 views

Showing user and userinterface interaction on a sequence diagram

I need to draw a sequence diagram and I am not sure exactly if it is correct to show interaction between user and user interface in this diagram. For example I want to make a panel visible or ...
2
votes
1answer
299 views

Issue when Return Message is a collection of objects (Sequence Diagram)

I have a sequence diagram for the following operation. The Activity class uses method present in ActivityBL class. The method is: GetActivities(ActivitySearch objt) The result message is a ...
0
votes
1answer
769 views

Sequence Diagram for Response Redirect in ASP.Net Webforms

In asp.net webforms I have a home aspx page that has a “Go” button. [This is the only control in this page]. When this button is clicked, the user is redirected to “UserProfile.aspx” page. How can we ...
1
vote
3answers
925 views

Using UML and Use Cases in Game Design

In the Use case you need to make all the activities the user can do. And then in the Activity diagram I need to explain the Use cases, show the steps that it handles. But if this is all correct, ...
2
votes
2answers
1k views

Should I represent special cases (like errors / exceptions) in UML diagrams?

Let's say you write a program that, when started, reads its configuration file to know which modules to start-up etc. If that configuration file is missing, an error will probably show up. This is an ...
3
votes
6answers
4k views

How to properly design classes for a big project?

If we need to represent classes in a class diagram for a big project that is not completely designed yet, and the classes have to be actual tables in a database, how would we predict and design the ...
6
votes
4answers
861 views

Software design by pseudocoding?

Do you know a good way to design (i.e. write down) software with a method based on pseudocode? I'm new to software design and read some information about UML. My humble class hierarchies are good so ...
1
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1answer
158 views

UML Receptions and AcceptEventActions

What shall be the relationship between the receptions of a class (was classifier before Aadaam correction) and the AcceptEventActions in the activity describing the behavior of its instances? I ...
1
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1answer
250 views

UML Actions with object and control flows

Consider a UML Action contained in a UML Activity defining the behavior of a classifier. Such Action has three input pins connected to other output pins of different action by means of object flow ...
3
votes
1answer
276 views

What are the main differences between FUML and the Executable UML profile?

I'd like to know what are the main difference between the Foundational Subset for Executable UML models and the Executable UML profile (which followed the Schlaer-Mellor methodology). Thank you
2
votes
1answer
960 views

UML representation of specific factory pattern

I have to create an UML class diagram from the following example code (Perl). I don't think that the standard factory pattern match in my case or I don't understand it correctly. I don't have ...
2
votes
1answer
812 views

Is there any logical relation between different types of UML diagrams?

I'm trying to find out ,that is there any relation between different types of UML diagrams, for example, once you developed a use case, should it be an event for each of them in a sequence diagram, or ...
0
votes
1answer
684 views

Updating and organizing class diagrams in a growing C++ project

I am working on a C++ project that is getting bigger and bigger. I do a lot of UML so it was not really hard to explain my work to co-workers until now. Lately I implemented a lot of new features and ...
9
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4answers
1k views

“UML is the worst thing to ever happen to MDD.” Why?

William Cook in a tweet wrote that: "UML is the worst thing to ever happen to MDD. Fortunately many people now realize this ..." I would like to know the reasoning behind that claim (apparently, ...
0
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3answers
3k views

How to visualize timer functionality in sequence diagram?

I am developing software for communication with external device through serial port. To better understand the new functionality I am trying to display it in sequence diagram. Flow of events is as ...
7
votes
6answers
2k views

Truly useful UML diagrams

UML has a jungle of Diagrams. Profile Diagrams, Class Diagrams, Package Diagrams... However, (IMH-and-not-too-experienced-O) I quite see that doing each and every diagram is overkill. Therefore, ...
3
votes
3answers
2k views

What is the order of diagram drawing in a design?

I'm new with OOP and UML and I have some confusion here. I'd like to know where to start, I mean, somebody comes to you and ask you to do something (involves software design of course), once you have ...
4
votes
2answers
660 views

Object oriented design importance

I started studying Object Oriented Design and Modelling using the this book by James Rumbaugh. It uses a tool called Object Modeling Technique (OMT). I have certain newbie questions. I searched the ...
0
votes
2answers
128 views

Plan variable and call dependencies [closed]

I'd like to write down the design of my program to understand the dependencies and calls better. I know there are class diagrams which show inheritance and attribute variables. However I'd also like ...
2
votes
13answers
521 views

How much should I worry about modeling/analyzing a web application?

I'm developing kind of a modern web application - scalable, robust and fast. I need to develop it as fast as I can. How much should I worry about the analysis phase or writing UML diagrams or ER ...
1
vote
1answer
465 views

UML, Dependency, and Martin Fowler's Data Mapper Diagram

I'm trying to get a better understanding of Dependency. In Martin Fowler's explanation of the Data Mapper pattern, http://martinfowler.com/eaaCatalog/dataMapper.html, the UML diagram shows the Mapper ...
4
votes
1answer
2k views

How can I express recursive composition in UML class diagrams?

I have one class called "Institution" which represents a public institution (with properties like id_inst, name_inst, tel_inst, fax_inst...). The institution can have affiliated institutions, for ...
-3
votes
1answer
440 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 ...
4
votes
2answers
584 views

Explaining how the code you wrote works [closed]

I was asked to create for a freelance project a Monopoly game in Java. After finishing it the same guy asked me to create four UML diagrams from which he could understand how the game works. ...
4
votes
5answers
1k views

Limitations of UML? [closed]

I'm currently studying for an examination and one of the sample paper questions is to discuss the limitations of UML. Most of the material I'm finding on the net is relating to a specific UML ...
5
votes
1answer
7k views

Are using <<include>> and <<extend>> relationship in this use-case diagram actually same?

I am trying to draw a UML use-case diagram to model requirements for a software project. The two requirements I have issue to model are: TravelAgent creates a booking for a [old] client who is ...
2
votes
3answers
317 views

How to model two similar tasks with the Use-case diagram

I am trying to draw a use-case diagram for a software project. Two requirements for the software I am trying to model in use-case diagram are: A customer (i.e. Client) should be able to cancel its ...
1
vote
1answer
848 views

<<access>> and <<use>> in UML Component diagrams

How to decide if have to take the <<access>> or <<use>> notation for "-->" arrows in Component diagrams written in UML?
22
votes
19answers
7k views

How important are UML diagrams for a successful project?

I'm in the middle of a project and I was asked to write UML diagrams (use cases,class diagram,etc). The project isn't very complex. I was wondering if this be a waste of my time? Should I just be ...
1
vote
4answers
2k views

best way to handle a many to many relationship?

I am drawing a class diagram and I want to know what's the proper notation for many to many relationship between supplier and product? Should I show the table created supplier_product or leave it out ...
3
votes
3answers
1k views

Where to start a software Analysis & Designing? [closed]

I am starting a big database-oriented software project to develop. I have full picture of the software in mind. I need to do the designing using UML. As there are various tools in UML such as usecase, ...
3
votes
2answers
375 views

Component Diagram, what's next?

I'm working on an iPhone application and I created a component diagram. I defined interfaces for each component. For example I have an AI component and I have made some interfaces for it. How should ...
6
votes
1answer
746 views

How do you perform modeling in an Extreme Programming environment?

I know methodologies, like Extreme Programming (XP), which specifies its own specific practices for developing software. However, unlike Scrum where it focuses more on management aspects, XP specifies ...
3
votes
2answers
2k views

How to use BPMN and use case and other diagrams together

I asked this question on stackoverflow, but it seems this question is not suitable there, so I post here for discussion. BPMN (Business Process Modeling Notations) is used for modeling business ...
1
vote
1answer
139 views

what kind of relation will exist between a member and a P2P network classes in a class diagram?

I have a member class which stores the IP, and ports used on that member. Another class P2P stores a list of all the members currently in the network and provides join,leave functionality. What kind ...
3
votes
1answer
443 views

What's a good notation for showing MVC interactions?

I'm developing various websites and functionality to cater to various different use-cases up in Django. Is there a good notation for showing what behaviour is at each stage, e.g., swimlanes. I use ...
4
votes
4answers
2k views

Web pages in UML sequence diagrams?

In my current project, we have an ongoing discussion about whether or not it's a good idea to include an artifact representing a web page in an UML sequence diagram for a web application, making ...
2
votes
1answer
1k views

How do you do to create the ViewModel part of your MVVM designs?

Sometimes, when I plan to create a program using this architectural pattern, I've got a lot of difficulties when I'm in the View Model phase. I'm using WAF Framework to develop this architectural ...