what are the difference between class diagram and sequence diagram?

[jacob deiter]

what are the difference between class diagram and sequence diagram?

[David Newton]

Wouldn't just looking at an example of both diagram types answer that question?!

When I do an image search for both I get a number of great examples. Do you really not see a difference?

[kri shan]

Simple answer:
Class diagram -> static diagram
Sequence diagram -> Dynamic diagram

[Vlad Varnica]

If you look in the Java code which has been generated from diagrams then you can notice that the class diagram usually model classes or packages while a sequence diagram is modeling methods.

Class diagram example: http://www.ejb3.org/class_diagram.png
Sequence diagram example : http://www.ibm.com/developerworks/rational/library/3101.html

[AbderRahman Ali]

jacob deiter wrote:what are the difference between class diagram and sequence diagram?

- Class diagram: It is a UML diagram that illustrates classes, interfaces, and their associations. And, it is used for static object modeling.
- Sequence diagram: It is a UML diagram that illustrates how objects (Instance of a class) interact with each other. And, it is used for dynamic object modeling.

Reference:

Applying UML and Patterns, Craig Larman

[jc: Corrected the name of Mr. Larman]

[Shalin Siriwardhana]

For future readers of this thread:

You can get a very solid idea about sequence diagramming with this comprehensive guide

http://creately.com/blog/diagrams/sequence-diagram-tutorial/

[Purvi Barot]

Class diagram :
You can use a class diagram to illustrate the relationships between the classes.

Sequence diagram :
Sequence diagram lets you show the messages sent among the instances of these classes and the order in which they are sent.

For more information,refer the following link :
https://www.techrepublic.com/article/class-and-sequence-diagrams-work-together-to-allow-precise-modeling/

[Amy David]

A class diagram shows a set of classes, interfaces and their relationships and illustrates the static design view of a system, whereas sequence diagram shows the sequence of actions that occurs in a system and illustrates the dynamic view of a system. Sequence diagrams