Most voted "diagram" questions
A Diagram is a structured and simplified visual representation of a given concept, idea or model.
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answers8013
viewsSoftware to Create Class Diagram
I would like to know what software is used or if there is an online site to create class diagrams, could someone tell me?
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answers1014
viewsSetting up a database, how do I make this relationship?
I’m assembling the EER diagram of an ERP. Almost all tables have a column called "id_company" that relates to the "Companies" table. This is because the user will be able to manage one or more…
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answers658
viewsWhat does a class diagram contain?
The title is a kind of stupid question, because the name of the diagram already answers. But yesterday this question came to mind when a professor of Analysis and Software Projects asked the whole…
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answers1306
viewsDiagram of class MVC
I am developing a web system in php, where all controllers extend their respective models, for example: I have a user Control and a user?. Another question, my model methods are all protected,…
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answer265
viewsmake Sankey diagram with two-way links R
I have the following data I use to make the Sankey diagram: list(nodes = structure(list(name = c("1.1.1. Formação Florestal", "1.1.2. Formação Savanica", NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,…
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answers1104
viewsUML, flow diagram between pages
I remember seeing something like that in college, but because it’s been too many years. Which diagram should I use to represent the flow between pages? It would be similar to represent the general…
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answers1731
viewsConceptual model
I was looking at the conceptual model diagrams, I saw some that contain the attributes and entities like this: And others who only have the Entity: Which model is correct? or are both? Is it…
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answer1370
viewsDoubt in class diagram
I am developing my class diagram of a project and got the following question: How do I indicate that only ADM can register a contributor? Do I have to put that in the Class Diagram right now? Thank…
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answer167
viewsCan an employee be an individual?
Was recommended, in this question, maintain the relationship between Pessoa Física and Funcionário as generalization (Employee extends Physical Person). I do not understand why it is not in this…
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answers145
viewsDER Student Question Theme
I am developing a learning control system, where I will have a database of questions that will be listed in an activity and subsequently answered by students. As soon as the student answers the…
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answers132
viewsIs there a "description" language of UML?
This may be a really silly question, but I did my research and I didn’t find anything in the sense that I was thinking. I’m studying UML in college, and although it’s just dragging the components to…
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answer114
viewsEntities classes
I am developing a sales project to which I will have registered a funcionário which may also be a vendedor, I’m gonna have a cliente which may be a pessoa física or pessoa jurídica, fornecedores…
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answers16608
viewsWhat is the difference between MER (Relationship Entity Model) and DER (Relationship Entity Diagram)?
What is the difference between an MER diagram and an ERI diagram, with examples.
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answer649
viewsHow to Import a . er1 File into CA Data Modeling
I need to import an . er1 file from an older version of Erwin in CA Data Modeling (Community Edition). This is possible ? I tried to open direct and the options of "Import" unsuccessfully. Grateful…
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answer67
viewsShould all inherited attributes be used?
I am constructing a class diagram, where several classes have 3 equal attributes, and one or another class has only 2 of these attributes. So I thought I’d create a parent class with all these…
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answers1558
viewsIs there a collaborative online tool for Use Case Diagram and Sequence Diagram?
I have to do a college group work consisting of making use and sequence case diagrams. In order not to have to keep downloading files, editing and re-sending to other members of the group, there is…
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answers4066
viewsSequence Diagram with MVC facing the web!
Good afternoon guys, I’m having doubts about some sequence diagrams I’m developing for a college job. In theory I already know what a sequence diagram is, what it does and what its purpose, but the…
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answers155
viewsAlgorithm with flow chart/diagram
Guys, I’m taking a course in logic and the following question has fallen: Draw up a block diagram to verify which products need to be purchased and the quantity to be purchased: Having the following…
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answers787
viewsQuestions about activity diagrams
The activity diagram it describes a single activity of the system or it specifies the various activities of the system? Can there be more than one start in the activity diagram? Ex: Starts an…
diagramasked 5 years, 7 months ago veroneseComS 2,752 -
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answers682
viewsView of XSD
In our life of development we always face various challenges. Whenever I needed to visualize an XSD in the form of a diagram, I used the program XSD Diagram, see the image below: However, for a few…
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answers111
viewsConnection between Controller and other classes in the class diagram
I am modeling a project through the UML class diagram, this project is guided by the MVC standard, so that in a given Controller method I receive information, I instate a new object and insert this…
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answer1770
viewsGenerate UML diagrams from PHP code?
There is some way, software, IDE that generates diagrams from PHP code, example, I have the project ready in PHP, so it takes my code and generates the diagrams. As IDE I use Phpstorm but I do not…
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answers167
viewsHow to use Database Diagrams in Visual Studio 2015
I’m doing the exercises in the book: "Use the C#Head", and one of the exercises was asked to create a Database Diagrams. But you don’t have this option in Microsoft Visual Studio 2015. Book page: So…
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answer1069
viewsDifference between "Extension Relationship" and "Extension Point"
Good morning! What is the difference between these two terms and their use in the use case diagram? I already know the concept of extension, but I didn’t understand the relationship between the two.…
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answer44
viewsUse cases for color guessing game
In order to practice APOO I am trying to apply use cases to a simple game of guessing a color. Here it would be it visually. The user can try to guess as many times as he wants, or restart the game…
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answer93
viewsHow to interpret the composition connector in a class diagram?
The teacher asked to make a relationship between parents, state and city. From what I understood of this relationship I made this diagram. Only he said that the diamond side is on the wrong side and…
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answer92
viewsIs it a good choice to start a project with Diagram use cases, then class diagram?
I have an idea of software, but I don’t know if I should go directly to the class diagram and then the coding or if first of all I should use a use case diagram. I will work on this software alone.…
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answers134
viewsI need to create a "signature" class in my class diagram
I am making a class diagram of a system that will locate, intermediary purchase and scheduling petshops services, the customer will have an option to have a basic or premium subscription (where it…
diagramasked 6 years, 2 months ago Jhonatan Fernandes Porto 1 -
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answers175
viewsSay more with less in the UML class diagram
I’m having a question on how to draw up a diagram for this scenario: Application in Laravel MVC Too much code equal in the view and controller layers wanted to omit this Work of the facul I wondered…
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answers89
viewsCalculate number of sales of a seller
I’m doing academic work on comics, in this case I’m developing a database for a food distributor. I am in doubt as to how I can count the amount of sales that a seller has made in order to calculate…
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answers216
viewsJoin and merge activity diagram
What’s the difference between Join and Merge in the Activity Diagram? I would like a simple example of each of them to better understand.
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answers59
viewsHow to read this relation in this ER diagram?
Having this ER diagram how do I read the relationship between account and customer? I thought to read as follows "A customer can have N accounts, and an account is always associated with M clients"…
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answers29
viewsDoubt - UML - Use Cases
Hello, I would like to express that the use cases "View Patients", "Schedule Visit" and "Send Messages" necessarily need to be logged in beforehand in order to be executed and performed. Anyway,…
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answer59
viewsI would like your opinion about an Entity-Relationship Diagram of a POSTGRESQL script
I am doing a work of the college whose goal is to make a database of a particular library and to elaborate an entity-relationship diagram of it , I made the script in postgresql but I have a lot of…
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viewsHow to use UML package diagram to mount system interface?
I have the following diagram, which is not formatted following any UML diagram. The purpose of it is to represent the functioning and connection of each part of the problem solution (a web…
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viewsCould someone help me with a class diagram?
In a class diagram how to place chat online?
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answer421
viewsConvert Sequence diagram to Java
I’m solving exercises on modeling, and in one exercise is given a sequence diagram, and I’d like to convert this diagram to Java code, considering that the execution starts from a method X of class…