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Questions tagged [use-case]

Use-cases capture and specify requirements of a system and stakeholder expectations with a view to the objectives of its users. Do not use this tag for for questions about suitability of the use of techniques/features to solve implementation issues.

Purpose

Use-cases capture and specify requirements of a system and stakeholder expectations with a view to the objectives of its users and the added value.

Tag usage

Use this tag for questions relating to the problems that a system is supposed to solve, and to use-case analysis and design:

  • Identifying and scoping use-cases in narratives and requirements
  • Analyzing the actors and their interactions with a system
  • Abstracting use-cases from specific scenario and user-interfaces
  • Documenting use-cases in textual or tabular form
  • Modeling use-cases in UML. In this case add .

You may also use this tag for questions related to the implementation of use-cases (e.g. with )

Do not use this tag for for questions about:

  • suitability of programming techniques or features to solve implementation issues. The remaining tags should be sufficient for people to find your question.
  • exclusively UML use-case diagramming syntax. Prefer the tag combination in this case.

Additional information:

826 questions
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How to connect use cases with each other?

I'm setting the use cases of a project, here are some of the details : My question is two parts : first one : I have an actor user. The user can register on the website. He can login, view profile, edit password. Regarding the previous use cases,…
Rabih
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Some questions on MongoDb Category hierarchy use case

I'm a PHP developer trying to tackle http://docs.mongodb.org/ecosystem/use-cases/category-hierarchy/, but I don't know much about Python. My first question: for cat in db.categories.find( {'ancestors._id': bop_id}, {'parent_id':…
Iano
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Use cases involving two actors

Can anyone give a good example of a use case diagram involving two actors? Also, the diagrams generally have lines without arrows to connect actors to use cases. However, when two actors are involved, do the lines have to show a direction to…
R.S.K
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Need to confirm whether this use case diagram is correct

What the digram shows is a user: Submits an inquiry into the system. The user can amend their enquiry If the user finds a counter-party, they can then negotiate which results in a trade execution. This then results in a private auction between…
user2309137
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What UML Use Cases to Write?

It's been a really long time since I worked with UML Diagrams. I started working with UML Use Cases again, for a real world project. I would like to ask some questions. How should I approach writing use cases? I believe the tasks that leads to a…
Sobiaholic
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what is the difference between 'includes' and 'extends' in a use case diagram?

If a vending machine has two methods of payment, e.g. cash and points would this be include cash and points from the payment method use case or extends? And if you choose points to pay you have to insert loyalty card to see if you have enough points…
David Gladwin
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Authentication, "manage" use case and SSD diagram

I am about writing a report and I have some questions to ask. I am pretty sure that the authentication isn't a use case but I can use it as an included use case in the diagram. My question is: Is it correct to describe this "use case" and make his…
user2946812
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Represent options from a checkbox in a use case description

The user has a checkbox where he can check as many options as he wants (or none at all) and click proceed. How can I represent this in a use case description? I can't figure it out.
user2255473
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How to express language switching in an use-case diagram?

Use case diagram is "A list of steps, typically defining interactions role and a system, to achieve a goal." (according to http://en.wikipedia.org/wiki/Use_case). Login should not be included in use-case diagram, according to…
mirelon
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handling online transactions in a use case diagram

I have to design a use case diagram for a video rental store.In this the customers should be able to pay rental fees online.In this sort of a situation when online payments have to be done, does the bank become an actor?Would the tasks of the bank…
clarkson
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Use case diagram hierarchy and associations

I've been studying use case diagrams for a little while now and i've created my own to model one for a mobile banking system. However, in my model there is one thing that i am unsure how to accomplish. In the picture below, you can see the user. I…
saturn
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Ask about "Include" in UML

My teacher designed UML about one database to manage school. It has 3 actors, many use case : Student : See their information, see grade. Teacher : Input grade of student. Office : Manage information of student, order grade of student. And all…
pato24193
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Activity Diagram based on Use Case?

I need to learn how to map a use case diagram to an activity diagram.are you'll having any good examples or tutorials regarding this. Thank you have a nice day ahead lahiru
lahiruW
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How to model a system which gives input to a system under consideration in a use-case diagram?

So i have to come-up with a use-case diagram. I have identified the actors and use-cases. But the question is how should i model some another system(say A) the output of which is kind of input to mine(say B) ? Can the A be modelled as actor ? If…
Abhishek Singh
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How to elaborate information flow in large scale distributed system by UML

I am currently Designing UML Diagrams for a distributed backed made up of 8 nodes, which handle specific operations depending on the message received from the web Client. The problem I have is that, the initial node which acts as the "Gate of Entry"…
Gehan
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