UML Learning: Sequence diagram (sequence diagram) sequence diagram

Introduction

What is the relationship between use case diagrams, class diagrams, activity diagrams, and sequence diagrams?

What's the role of a timeline diagram?

First to simulate the Chibi of the War of the Kingdoms of the sequence diagram, first know what it looks like, and then in-depth introduction:

Small partner stunned, such a drawing strategy diagram, at a glance, the original famous campaign is so. So see the kingdoms will never fall asleep ...

And look at the main actions of the big men:

Code simulates each task action:

public class Guan Yu
{public
    void  defender Negundo State ();
}
public class Zhang Fei
{public
   void  Defense Jingzhou Frontline ();
}
public class Sun Quan
{public
   void collar help  ();
}
Publc class Liu Bei
{public
   void Challenge ();
}
PUBLC class  Hung Ming
{public
  void   formulation strategy ();
  public void  United Sun Quan ();
  private void circumstance Incendiary ();
}

(The above is pseudo code, only to explain the problem, shorten the article length).