Table of Contents
Object Diagram
To be able to generate those diagrams, you must have Graphviz_software installed on your machine in the default directory c:\Program Files\GraphvizX.XX or /usr/bin/dot. You can have_a_look_here_if_you_have_installed_Graphviz_somewhere_else. The description of object diagram is similar to the description of class diagram.
New rendering
This page show the rendering given by the new Svek_architecture. Note that you can disable the shadowing using the skinparam shadowing false command.
Definition of objects
You define instance of objects using the object keywords. <uml t=“objects” > object firstObject object “My Second Object” as o2 </uml>
[imgp/objects.png]
Relations between objects
Relations between objects are defined using the following symbols :
| relation | notation | picture | |
|---|---|---|---|
| Extension | < | – | [img/extends01.png] |
| Composition | *– | [img/sym03.png] | |
| Aggregation | o– | [img/sym01.png] |
It is possible to replace – by .. to have a dotted line. Knowing those rules, it is possible to draw the following drawings. It is possible a add a label on the relation, using “ : ”, followed by the text of the label. For cardinality, you can use double-quotes “” on each side of the relation. <uml t=“objects2” > object Object01 object Object02 object Object03 object Object04 object Object05 object Object06 object Object07 object Object08
Object01 <|– Object02 Object03 *– Object04 Object05 o– “4” Object06 Object07 .. Object08 : some labels </uml>
[imgp/objects_001.png]
Adding fields
To declare fields, you can use the symbol “:” followed by the field's name. <uml t=“objects_002”>
object user
user : name = “Dummy” user : id = 123
</uml>
It is also possible to ground between brackets {} all fields. <uml t=“objects_003”>
object user {
name = "Dummy" id = 123
}
</uml>
Common features with class diagrams
- Visibility
- Defines_notes
- Use_packages
- Title_the_diagram
- Skin_the_output
- Split_the_image
