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How to represent a complex use case where every step of the main flow can...
Little backgroundI'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...
View Articlehow to resolve FATAL EXCEPTION: DefaultDispatcher-worker-4
I have written a new usecase to communicate to api which uses Flow, I am guessing I am not handing the threading properly in the Usecase between Main thread and IO thread,This is the error I get-01-18...
View ArticleWhat's is the difference between include and extend in use case diagram?
What is the difference between include and extend in a use case diagram?
View ArticleInterface for use cases (application services)?
Should Use Cases or Application Services have interfaces and implementations when following a hexagonal architecture with ddd principles? For example, the use case "delete a video", should it have...
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System or external system as an actor in a use case?
Let's image a new simple CRM, where...some external system A uploads new data, CRM saves themCRM validates the data and creates eg. new cases from themuser displays the casesThese requirements relate...
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How Activity diagram should be? [closed]
i am making an activity diagram about an online train reservation system i want just to ask if what i did is correct or could it be better and how in general should activity diagram be ?
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Use case diagram about System Hotel
I would like to show use case diagram me.What is correct use case diagram me about system hotel?Note :outside of system boundary is comment, Not use casesorry don't have reputation 10. Don't show image...
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How to Represent Constraints for Role-Based Access Control in a Task...
I'm working on designing a use case diagram for a task management application, and I'm seeking guidance on representing role-based access control (RBAC) effectively.I've created a preliminary use case...
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How to ensure clear and concise Use Case diagram?
Designing a use case diagram, we face a challenge with three actors: Visitor, Client, and Administrator. Each has unique roles, but we must accurately capture their interactions and relationships....
View ArticleWhat is the most acceptable way to let a visitor know they are on an...
I'm developing a site that uses JavaScript, HTML5 and CSS3 heavily. I have no desire to support last generations browsers (IE8 and under for example.) What is the most acceptable way to let the visitor...
View ArticleShould I use n or * if I have exact number of things in the model?
I need to create UML diagrams for homework about a game ( called Downfall). I have to create it so that it works on any number (n) of player.If this is an exact number that appears in multiple places...
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How to format branching statements (while/if-else) in UML use case descriptions?
How are branching statements supposed to be written in UML use case descriptions? Here is the situation I am modelling -An employee has to swipe a card through a card reader to clock into work. The...
View ArticleWhat does Use Case and Interactor mean in the context of clean architecture?
What is Use Case and Interactor in context of Clean Architecture. I read that use case contains business logic, but why use case if there is a presentation layer where in presenter we can put business...
View ArticleJoin and Cancel - use Include or Extend? [duplicate]
Image hereI have a Use Case Diagram for our Event Management Platform and our group is having a fight. I wonder in these two which is correct:Cancel EXTENDS Join (in my view, we can choose to Cancel or...
View ArticleHandling Multiple Actors in a Use Case in Clean Architecture and DDD
I am doing an API for a blog site using Clean Architecture and DDD. I find myself doing a use case to get all comments for a requested article. The thing is that anonymous users can see the comments...
View ArticleUML use case initiated by an external event
I'm developing a use-case diagram for a system that uses several external APIs.The system should identify when a customer made an EFT(Electronic Fund Transfer) payment to a merchant's bank account and...
View ArticleRelated entity creation use case in clean architecture
I'm working on a project using Clean Architecture and an ORM. I have two entities: Entity A and Entity B. Entity A has a relationship with Entity B (e.g., Entity A contains an instance of Entity...
View ArticleHow should I separate UseCases based on the requirements?
So I'm trying to understand clean architecture principles.One of the most confusing for me is the UseCase layer. I have read a lot of explanation about what is that, but I still can not decide how many...
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How to represent relationship between system-level use case diagram and...
In my application, I have actors guest, user and admin, user can use basic features and admin can do things like manage users.Beside, each user can create an organization, and inside organization also...
View ArticleUML Actor, UseCase and BehavioredClassifiers
Both UML Actor and UseCase specialize BehavioredClassifier which implies that they can own Behaviors. It is clear to me that UseCase needs to have Behaviors in order to link itself to StateMachine or...
View Articleby lazy {} causing a cast exception in production / hashmap loosing values...
we have a code that looks somewhat like this small example:// this is a class that is injected into a view model, it is injected once, as a parameter// it is used in multiple functions in the view...
View ArticleOrchestrated vs Core use-cases in clean architecture
I have an endpoint that should create a book, and if it is the clients first created book it should send an email like "Congratulations to your first book". Following Clean Architecture I thought I...
View ArticleMaking a use cases diagram for an automated system
How exactly does one draw out a use cases diagram when everything is automated? Here is an example with a request I got:"Make a modification that resets a game server to a certain map or switches...
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Should Login be an included use case in Logout?
I'm researching on Use Case Diagram and have some question to discuss with you. Specifically, I'm wondering about the include relationship in Use Case Diagram. When I read the document of UML...
View ArticleVerb Above Association in USE CASE Diagram
I've started drawing use case diagrams and I have a quick question.Can we place a verb or any action above the association (line) connecting the actor to the use case (or feature in an oval)?For...
View ArticleWhat are use cases for coroutines?
The concept of a coroutine sounds very interesting, but I don't know, if it makes sense in a real productive environment? What are use cases for coroutines, where the coroutine implementation is more...
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How to make a class diagram out of a use case diagram?
I plan to do a system aiming at journalists submitting news stories to editors in view of publishing. This is my use-case diagram:I struggle somewhat to define the classes based on this diagram.Below...
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How to rename actors in draw.io
I am using draw.io online tool for drawing UML diagrams. When I am dragging an Actor from left panel to the canvas, there I found no options to rename the actor. For example I want to rename the...
View ArticleDo two include relationships attached to a singular use case mean that both...
I have an instance where I want to represent a "sell stock" use case. In order to complete this, the user must either access it through "search stock", or through "view stock portfolio".I don't know...
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How to portray visibility in Use Case Diagram
ContextImagine an Event Management website where event planners can post events. Say we have three Actors: a non-registered user, registered user and an Event Planner. Event planner can post events...
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