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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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Online Job Portal System Use Case Diagrams

I want to have a correct use case diagram for an online job portal system. Here is my attemp: I have some doubts: I can't see where making "Login" use case witch is an important use case for this system. This use case diagram is not showing the…
Marie
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When use use-case diagram and when use class diagram?

i'm php developer using MVC architecture that i'm new to UML i know use-case , class , object , activity, sequence diagrams but i don't know for modeling a application where i should start. i know use-case and class diagrams are structural diagrams…
minttux
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UML Use case model: Actor Generalization

I'm starting to learn UML and have a question about Actor Generalization: Imagine I'm writing a use case diagram for some kind of application for a College . I've identified there are two Actors; Student and Teacher. Now, to keep it short, lets say…
user2179721
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Can I extend actor in use case?

Can I extend actor in use case? for example I have "normal user" , "student user" and "teacher user"... every use case the "normal user" uses it ,by default the "student user" and "teacher user" use it too.. so can I extend "normal user" for…
Humam Helfawi
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extends in Use Cases diagram

in the book UML @ Classroom An Introduction to Object-Oriented Modeling is written "Use cases—even included or extending use cases—can always be executed independently. If they can only be executed within the scope of another use case and not…
Ahmed
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Is there an equivalent to use case inclusion and extension in Archimate model?

I use to use UML use cases and I have to model a system using Archimate. I need to model the features of the system, and I guess that I can do that using the business layer of Archimate. In this business layer, a service seems may correspond to a…
granier
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In activity diagram, can there be a fork into two actions but only one action at joining, due to inclusion of one action in the other?

Consider a system user can perform two actions in concurrent manner, the first action (A1) is just performed on the user's order, the second action (A2) includes performing (A1) when performed as it is stated in the following use-case…
Galaluddin Owais Galal
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How to represent common tasks between two users in activity diagram if each user has his own set of tasks?

Consider I have two users to use my website system (User and Admin), on each of their pages (User page and Admin page) they have some actions (tasks) available to run out in concurrent manner (A1 and A2 available for User) and (A1,A2,A3 and A4…
Galaluddin Owais Galal
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Use case Diagram for Pacman Arcade

Does any one know how to create use case diagram for PACMAN ARCADE game ?These are some of the features: Ghost Movement & Behavior when an energizer is eaten, the ghosts turn blue and flee from pac-man four colors ghost pursue player Energizers…
Tharindu Vinod
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Can an animal be an actor in use case diagram?

I am developing a use case diagram for dog veterinary. However, I was confused that whether I should use dog as an actor or not as it cannot communicate with the system. However, everything that system does is totally dependent on dog like,…
Mohammad Abbad
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How to represent a complex use case where every step of the main flow can have multiple scenarios (alternative or error path)?

Little background I'm new to writing use cases and representing their scenarios. I'm dealing with a complex system. In the first step of analyzing the system, I created a use case diagram where each use case represents a distinct goal or value for…
Parsa68
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how to separate the use cases from the view in software development?

I have a hard time understanding how to actually implement the clean architecture, taking note of the following point regarding the clean architecture. the inner circle should not know about the outer circle the use case should not know about the…
rahul Kushwaha
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UML use case diagram - extension points identification

Can you tell me if I understand extension points correctly in use cases (and in the diagram)? For use case 'Card Payment' and and extend use case 'Pay by credit card' is it properly identified that extension point wil be "User clicks pay by card…
PoloOlo
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Clients requirements on use case diagram

I want to create a use case diagram based on customer requirements (pnline food ordering system), which are for example ensure on-time delivery process and package orders promote the pizza shop How can I put these requirements on use case diagram?…
PoloOlo
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Use Case Diagram - two actors to one use case

I want a use case - store information system. I am to present the owner's requirements on a use case diagram, incl. a customer who, after logging in, does shopping, and an admin, who after logging in, manages prices, etc. Can I log into the system…
PoloOlo
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