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Questions tagged [sequence-diagram]

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85 questions
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1 vote
3 answers
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I have a Next.js application where a Page (page.tsx) renders a nested Form Component (AddStaff.tsx). When a user fills out the form and clicks 'Submit', who is the direct actor in a Sequence Diagram? ...
dok's user avatar
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8 votes
2 answers
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If I create a sequence diagram for a use case, should the objects in the sequence diagram be based on the methods and classes in the class diagram, or is that not necessarily required?
mana's user avatar
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2 votes
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What type of diagram can I use to model parallel processes interacting with a shared set of resources, along with the state of those resources at each point in time? My motivation is I have a bug that ...
Rob Mosher's user avatar
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1 vote
0 answers
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I'm trying to learn UML, and right now I'm focusing on sequence diagrams. I'm trying to represent this Java code in a diagram. I'm very unsure about the activation boxes. Could somebody maybe provide ...
Map Kami's user avatar
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1 vote
2 answers
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I am new to UML, and I am self-learning it, so please bear with me. I am trying to model a system where a teacher can develop an assignment paper and use an LLM to generate answers to make a more ...
D Jay's user avatar
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1 vote
2 answers
863 views

In UML we have two special messages, create and destroy. These two messages describe the creation and the destruction of objects, respectively. We must use the stereotypes << create >> and ...
AAA's user avatar
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2 votes
2 answers
222 views

We are developing a multi-user web-based application, where the users can join a "room" and a complicated handshake has to be set up between them, to be able to use a library on each ...
staccato's user avatar
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1 vote
1 answer
1k views

Please help with a diagram in which there are sequential requests. The logic is the following: Service 1 sends a PUT Trigger an export request to Service 2 If the response is 200 OK, then after 10 ...
Alex's user avatar
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3 votes
3 answers
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I am using the c language. I created one lifeline for each file. I am confused about the activation box. Many people said an activation box indicates an object is active and processing a task. In case ...
Sam's user avatar
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2 votes
1 answer
458 views

The following sequence diagram is rendered by Sparx Enterprise Architect. Is the start of the new activation (blue) correct? Shouldn't it rather continue with the existing activation on the Object2? ...
Petr B's user avatar
  • 131
4 votes
1 answer
322 views

In the Design Patterns: Elements of Reusable Object Oriented Software, the Gang of Four present the following canonical form for the Builder pattern: In Appendix B the following is mentioned ...
user32882's user avatar
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4 votes
2 answers
3k views

In UML sequence diagrams, there is the possibility to specify a synchronous call with a reply message. Example (taken from https://en.wikipedia.org/wiki/Sequence_diagram) When modelling that in ...
koppor's user avatar
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2 votes
1 answer
317 views

I am currently building a sequence diagram for a website to allow customers to make online bookings for a travel agency. If a customer books a flight, he/she can use an online payment method to pay ...
Malinsha Vithanage's user avatar
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1 answer
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I am working on an online exam management system, which have those main actors:- Super Admin. Can manage questions/answers under all functional areas. Functional Admin. Can add questions/answers ...
test test's user avatar
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1 answer
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For this question: Considering the following sequence diagram, it is CORRECT to state that: Select one or more: a. Message 4 might never be executed. b. Message 5 is not complete until the Customer ...
computerscienceisapain's user avatar
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