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UML Views and UML Diagrams
In this tutorial, we will learn about the different UML views and UML diagrams that are made to represent the Software model and which are implemented through these views.
By Monika Sharma Last updated : April 05, 2023
UML Views
There are five different views that the UML aims to visualize through different modeling diagrams. These five views are:
- User's View
- Structural Views
- Behavioral Views
- Environmental View
- Implementation View
Now, these views just provide the thinking methodology and expectations (that people have formed the software) of different groups of people. However, we still need to diagrammatically document the system requirements, and this is done through 9 different types of UML diagrams. These diagrams are divided into different categories. These categories are nothing else but these views that we mentioned earlier.
UML Diagrams
The different software diagrams according to the views they implement are:
1) User's view
This contains the diagrams in which the user's part of interaction with the software is defined. No internal working of the software is defined in this model. The diagrams contained in this view are:
2) Structural view
In the structural view, only the structure of the model is explained. This gives an estimate of what the software consists of. However, internal working is still not defined in this model. The diagram that this view includes are:
- Class Diagrams
- Object Diagrams
3) Behavioral view
The behavioral view contains the diagrams which explain the behavior of the software. These diagrams are:
- Sequence Diagram
- Collaboration Diagram
- State chart Diagram
- Activity Diagram
4) Environmental view
The environmental view contains the diagram which explains the after deployment behavior of the software model. This diagram usually explains the user interactions and software effects on the system. The diagrams that the environmental model contain are:
5) Implementation view
The implementation view consists of the diagrams which represent the implementation part of the software. This view is related to the developer’s views. This is the only view in which the internal workflow of the software is defined. The diagram that this view contains is as follows:
Types of UML Diagrams
There are 13 different types of UML diagrams: class, activity, object, use case, sequence, package, state, component, communication, composite structure, interaction overview, timing, and deployment.
These UML diagrams are divided into two distinct groups: Structural UML diagrams and Behavioral or Interaction UML diagrams.
1) Structural UML diagrams
List of Structural UML diagrams:
2) Behavioral UML diagrams
The of Behavioral UML diagrams:
The following diagram well explains the distribution of these 9 software diagrams according to the five mentioned views:
