You have to write the class name in italic : Here Contexte is an abstract class and Structure is a “concrete” class P. 99 of the specs says: The name of an abstract Classifier is shown in italics, where permitted by the font in use. Alternatively or in addition, an abstract Classifier may be shown … Read more
Martin Fowler shows it like this:
For two objects Foo and Bar we have: Dependency: class Foo { … fooMethod(Bar bar){} … } Association: class Foo { private Bar bar; … } Composition: (When Foo dies so does Bar) class Foo { … private Bar bar = new Bar(); … } Aggregation: (When Foo dies, Bar may live on) class Foo … Read more
Rumbaugh’s statement is the most telling and Uncle Bob’s good advice. As I’ve said elsewhere, Aggregation is semantically so weak as to offer nothing practically beneficial. It only has one valid corner case (acyclicity of recursive relationships) however few people know and understand that. So you end up having to point out in comments anyway. … Read more
For Visual Studio 2017, 2019 and 2022 This feature is still available, but it is NOT installed by default, you have to install it separately. From inside Visual Studio go to Tools -> Get Tools and Features Select the Individual components tab and search for Class Designer Check this Component and Install it After finish … Read more
As I’m sure you’re already aware, you can save a diagram as an image in several formats, including PNG but not TIFF. The quality of the images can be controlled in the options (Tools – Options), “Diagram” tab. The “Image Memory Limit” controls the amount of memory the image conversion process is allowed; increasing this … Read more
Both are correct, but the second one, when multiplicity is set to more than one, is used more naturally, and it is not necessary to define the collection class as it is shown in the first picture of your example. Simply said, multiplicity defines how many instances of a specific type can be stored by … Read more
The common way is to write constructors like methods and simply omit the return type. If you want to be extra clear, you can add <<constructor>> in front.
If there is no diamond, then we have a simple association. If the diamond is left empty, it signifies it is an aggregation. This relation is stronger than a simple association. In this case a Customer aggregates Orders. If the diamond is black, this means it is a composition, which is even stronger than an … Read more
I’m trying to give simple examples of the two types of lines. In the first diagram, the solid line shows an association: If the classes were declared in Java, this would be like ClassA storing a reference to ClassB as an attribute (it could be passed in to the constructor, created, etc.). So, you might … Read more