Learning Sequence Diagram

umlAfter we learn about Use Case and Activity Diagram, now we want to learn about Sequence Diagram. On this post, I use “Use case Add Course” which the actor is “registrar admin”.

toolbox sequence
toolbox sequence

Above is a toolbox sequnce diagram in Enterprise Architect. The figure below is example for making easy that show us an implementation of some objek which we will use.

global information
global information

First, we create the actor and the use case like figure below

use case
use case

We will create the sequence diagram for “Use case Add course”.

The main flow of Use case Add course such as

  1. Registrar admin input the code of Faculty
  2. System will show Faculty Id list
  3. Registrar admin select one Faculty Id
  4. System will prompt to input code of course
  5. Registrar admin input the course code
  6. System will show the list section of the course
  7. Registrar admin select one section
  8. System will check whether any schedule conflict or not. If No conflict, display schedule updated. A1: schedule conflict

This is my sequence diagram

sequence diagram
sequence diagram

Ok, that is the end my post, if any correction please feel free to comment. Thank you


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