====== Umbrello UML Modeller ======

Umbrello is a diagram tool that can help you with software and program development. This can help you visualize the flow of data through your programs. 



**Definition**
   *UML: Unified Modelling Language


===== Basic Outlay =====

Here is a basic example of the Umbrello workspace:

{{:atmos:citation:soft:workplace_exapmle.jpg|Workspace Example}}

==== Types of Diagrams ====

Umbrello has varies types of diagrams that you can create to help you organize and visualize your programs and data flow. 

The Umbrello UML Modeller 1.2 supports the following types of diagrams (They will all have a visual example):

  * Use Case Diagram
  * Class Diagram
  * Sequence Diagram
  * Collaboration Diagram 
  * State Diagram 
  * Activity Diagram 
  * Component Diagram
  * Deployment Diagram
  * Entity Relationship Diagram


=== Use Case Diagram ===

Shows the actors (people or other users of the system), uses cases (the scenarios when they use the system) and their relationship.

{{:atmos:citation:soft:case_example.jpg|Use Case}}


=== Class Diagram ===

Shows classes and the relationships between them.

{{:atmos:citation:soft:class_example.jpg|Class Diagram}}


=== Sequence Diagram ===

Shows objects and a sequence of method calls they make to other objects.

{{:atmos:citation:soft:sequence_example.jpg|Sequence Diagram}}


=== Collaboration Diagram ===

Shows objects and their relationships, putting emphasis on the objects that participate in the message exchange.

{{:atmos:citation:soft:collaboration_exapmle.jpg|Collaboration Diagram}}


=== State Diagram ===

Shows states, state changes and events in an object or a part of the system.

{{:atmos:citation:soft:state_exapmle.jpg|State Diagram}}


=== Activity Diagram ===

Shows activities and the changes from one activity to another with the events occurring in some part of the system. 

{{:atmos:citation:soft:activity_exapmle.jpg|Activity Diagram}}


=== Component Diagram ===

Shows the high level programming components (Such as KParts or JavaBeans).

< No picture available >


=== Deployment Diagram ===

Shows the instances of the components and their relationships.

< No picture available >


=== Entity Relationship Diagram ===

Shows data and the relationship and constraints between them. 

{{:atmos:citation:soft:entity_example.jpg|Entity Relationship Diagram}}