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

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1answer
309 views

Use case decomposition for class registration system

I am currently working on refactoring a summer camp registration system to include some new features and will also be using it as the basis for a new after-school class registration system. For this ...
2
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2answers
1k views

What is a Package Diagram? and What is a Sequence Diagram?

In many interviews I've been asked this question. What is a Package Diagram? and What is a Sequence Diagram? and difference between Package Diagram and Sequence Diagram. Thanks in Advance. Edit ...
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2answers
215 views

The Proper UML Model of a System for Non-Technical Boss

I've taken on some side work for this non-profit and last week was my first week on the job. They have two SQL Server Databases each with many tables in them that represent over 20 different ...
2
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2answers
538 views

Software Architecture Modelling

I am a little confused at how best to visually model a space-based architecture (SBA) for presenting the system/software architecture design to a client. The goal of this modelling is to show: The ...
2
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3answers
157 views

UML modelling semantics

In today's lecture about Modelling techniques with respect to MDD using UML the lecturer stated that it's absolutely necessary to give a (possibly) textual description about the semantics of each ...
0
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1answer
775 views

What UML diagram should I use to show a platform's architecture?

I have been learning UML and have a basic understanding now, but I keep seeing these sort of high level architecture diagrams. Here's one from Microsoft: Source: A bad picture is worth a thousand ...
4
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1answer
246 views

What is the name of this relationship between objects?

Different types of dependencies have particular names, such as linear dependency, circular dependency, self-referencing object, etc. What is the name of the dependency where those rules are true? A ...
2
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1answer
377 views

Project implementation details in node.js

I am working as a software engineer turned team leader in a large software company. One of my areas of strength is node.js, and we are in the process of moving a lot of our services to separate ...
0
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1answer
100 views

Extending Composite Structure model generally/in Enterprise Architect

I'm currently on a project, which integrates domain specific techniques in the modelling tool Enterprise Architect through UML Profiles. The domain specfic model almost matches the structure of the ...
3
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1answer
203 views

UML communication diagrams, implementation details or not?

After reading Applying UML and Patterns (Larman) and looking around on the Internet it still seems ambiguous to me if a UML communication diagram should depict implementation details (such as GUI ...
1
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1answer
367 views

UML Class diagram confusion

I am learning how to draw a UML class diagram and after reading a few tutorials, I am still confused about the appropriate usages of Association type (The clear diamond and black diamond). I ...
0
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0answers
90 views

Visual Studio UML reference to another modeling project

I am creating several components and have broken them into different class diagrams / modeling projects. I have to do this because a single diagram simply isn't big enough. Is there a way for a ...
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0answers
101 views

Inheritance and constricted referencing

Let's say I have BaseA and BaseB classes. BaseB can have to several references of BaseA instances. Now, we have two other classes, DerivedA and DerivedB that respectively inherit from BaseA and BaseB. ...
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3answers
598 views

Should I create a use case diagram for each screen?

In projects with many use cases, it's valid to create different use case diagrams, one for each screen? Or I shouldn't guide myself on the GUI of the software to make this, why? As a clarification, ...
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1answer
166 views

Should dependency relationships always be shown on class diagrams

I recently started using the Object aid UML generator plugin for Eclipse and noticed that by default adding of dependency relationships is switched off. This made me wonder if in most cases they ...
3
votes
2answers
645 views

How to show an “or includes” relationship - UML Use case diagram

I haven't come across this issue before and can't find it in my Schaum's Outline UML book and was wondering if someone here could help. I'm making a use case diagram for e-commerce, and in it I want ...
4
votes
1answer
503 views

Diagrams used to model the architecture and functionality of a website

I am attempting to understand what UML models/diagrams can be used to communicate a websites architecture. The model or models' purpose is to communicate the architecture and functionality of a ...
3
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5answers
799 views

What classes to put exactly in a class diagram?

What classes must I put in a class diagram? Only classes used in Business Layer and associations between them? Or also other classes in the Data Access Layer, Service Layer, etc.?
1
vote
1answer
131 views

How to create a feature map?

I have a big side project that I do now for 3 years. It has a lot of extra small tools to help me do tasks. Most of those tools are so old that I forgot what I have there. How to create a feature map ...
1
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1answer
71 views

Do I include association links for Objects that only have method scope in UML class diagrams

For example I have a utility Class which contains a few constants (GCMConstants), this class is used in one method in the application. However as it is not a member of the Class it should not be ...
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1answer
183 views

Do I include third party classes in my UML class diagrams

I'm developing a system which involves 2 Android applications and a Java web application. For my UML class diagrams I have not included third party classes I use e.g. observer type interfaces. Should ...
0
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1answer
197 views

Use Cases with respect to downstream systems

Use cases are primarily meant for interaction between user and a system. It could be used for interaction between system and another system. The actors are primarily roles. It is easy to document ...
7
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7answers
4k views

OO Design related questions in technical interviews

I've been attending quite a few interviews recently and have been asked by companies to answer "design a [insert model]" questions more than a few times. Is this normal in the industry nowadays? ...
2
votes
1answer
175 views

How to properly deal with ER and UML diagram management

When learning about these tools, I (naively) thought that mapping about the business space could be front loaded by doing it only once and refering to those diagrams for each project within a single ...
2
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1answer
452 views

UML Class diagrams with Java packages?

I am trying to model in UML 2.0 a Java servlet application that has three classes Servlet class; essentially a main class that acts as the controller DatabaseLogic; contains methods for database ...
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3answers
478 views

UML - Class Diagrams Order -> Products

I have a class diagram that is like this: < Order > (1) CAN HAVE (M) < products > But therefore Order has the following: Order_Id Customer_Id Order_date_day Order_date_month ...
0
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1answer
781 views

Class Design and Structure Online Web Store

I hope I have asked this in the right forum. Basically, we're designing an Online Store and I am designing the class structure for ordering a product and want some clarification on what I have so ...
0
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1answer
385 views

How can I use UML to model a relationship between two classes, where one has functions exposed as friend to the other?

I have a two classes: ------------ --------------- X Y ------------ --------------- ...
2
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1answer
373 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
373 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
283 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
7k 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 ...
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2answers
223 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
353 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
238 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 ...
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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 ...
11
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4answers
4k 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 ...
1
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1answer
794 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
325 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
258 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
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1answer
623 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 ...
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3answers
763 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
898 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
3k 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
734 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
145 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
181 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
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1answer
221 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