Use Case Diagram Tutorial and EXAMPLE ( UML Diagram )

A Use Case Diagram visually represents the relationship between actors and key actions within a business solution. In this video, we'll look at how to create a use case diagram for business analysts.
We'll also look at the key components of the model including actors, scenarios, system boundaries, extend and include relationships, as well as generalizations. A use case is a functionality in a system that will allow the user to achieve a goal. It also depicts the scope of that solution.

This UML diagram is widely used by business analysts to communicate complex information to customers and technical teams in a simple way. But there are some key components that need to be considered in order to provide optimal communication when creating a use case diagram. I hope this example and tutorial enable you to execute UML diagram best practices to maximize effectiveness.

When to create a UML Use Case Diagram?
- To supplement a detailed use case description
- To illustrate the scope of a system or solution to technical audiences
- To illustrate elements that are out of scope for a system or solution
- To help to discuss various scenarios in a system with technical teams
- To illustrate the actors that will use an application, system, or solution
- To provide a simple representation of goals and outcomes

#usecasediagram #usecase #businessanalysis #businessanalyst #tutorial #bestpractice

No UML Use Case Diagram Tutorial, but All About Use Case Diagrams - What is a Use Case Diagram, Use Case Diagram Tutorial, and More, or Use Case Diagram - Step by Step Tutorial with Example, and like Use Case Diagrams Tutorial for Business Analysts | Commonly Used Business Analyst Use Case, but not UML Use Case Diagram Tutorial | Definition, Symbols and Mor, and like UML - Use case diagram introduction, but not like User Stories vs Use Cases, or What Is A Use Case, and like UML Class Diagram Tutorial, but not UML Diagrams Full Course (Unified Modeling Language), and like UML 2.0 Tutorial, or How to draw a UML Use Case Diagram, and like Creating UML Use Case Diagrams, or 2 - UML Use Case Diagrams

[ajibolaibrahim]

Your videos are one of the best materials for newbies in BA as well as professionals in BA. You made it so simple that a newbie would understand and you made it so detailed that a professional would need it.
Thanks for all the effort you're putting into your videos.

[rembautimes]

Thanks for this content - What I like about this channel is how the BA role and documentation is structured. Too many times BAs get mixed up and try to jump straight into functional requirements without fully developing the use case.

[masonsingleton]

Definitely one of the best and most concise tutorials that I've seen on this topic. Thanks for sharing this!!

[GabriellaVegasss]

Great discussion on use case diagrams! The tips on keeping use case names short and action-oriented are super practical too. Thanks for making this topic so accessible!

[Maria-fihj]

Literally, thank you so much! This helped me so much to study for an upcoming exam. I'll make sure to remember the theoritical basis you showed us and excel in that exam!

[morranjohansen]

Thanks for this! The explanation on the primary and secondary actors really helps!

[lamiaali]

You explain things very clear. Thank you so much.

[greatiyk]

Thank you for this simplified tutorial and for clarifying the positions and roles of the primary and secondary actors.
Please can you do a session for documenting a Use Case Specification?

[umaribrahim]

Thanks Mr. White for this comprehensive tutorial. I had a better understanding of use case diagram and use case documentation after watching the relevant videos. However i have two questions to ask. One is regarding the placement of primary and secondary use case actors and the other is about a scenario where the use case diagram is too large and complex.

Q1 => You made mention that the secondary actors should be placed in the right side of the use case diagram. What if an actor serves as a primary actor to a use case but also serves as secondary actor to another use case. Are we to duplicate the actor in both sides of the use case diagram?

Q2 => Is it allowed to divide a use case diagram of a system into different sub-diagrams especially if the system use case diagram is too large and complex?

Thank you.

[Ragehunter]

12:29 thank you very much sir and 5:58 clear!

[kimhakkol]

This video is very helpful. Thank you so much.

[timothyoyoo]

this was great.more examples would be superb 💯

[aninehartog]

Thanks for this tutorial. How you do Use Case Diagram and Description for a change to an existing system like making existing fields manadory or removing a option from a drop down list.

[DeniseGomezz]

I like how you explained everything. Good work! The examples really made it easier to understand how to create use case diagrams. Thanks!

[GoFredBananass]

amazing, thanks so much. very simple and clear.

[donaldbagwell]

In the above example [complete online transaction] is at the top; is that the normal case, or can you have the resulting behavior e.g., [build a home] and the construction or acquire materials at the top

[isurujn]

Hi Michael, thanks for the in-depth video. Learned quite a lot. I do have a question.

In BA literature I've read elsewhere, I've seen them saying you should only include use cases in a diagram that enable users to achieve a goal. I saw that you have said the same in the tips list. I've heard that a use case such as 'Login' is not considered a goal since users don't really 'want' to login. It has no inherent business value so it's not the actual goal. It's just a task they have to do it in order to get to do something that has business value to reach a goal. But I see that you have still included 'Login' use case in the diagram.

I'm confused about this because of the conflicting viewpoints I've been seeing. I'd love to know your rationale behind this.

[didistone]

Can an Intranet be/is an Actor or is it part of the system