uml diagram software

The use case diagram is mainly used to illustrate the main event process of the system. It is mainly used to describe the customer's needs, that is, the user wants the system to complete certain functional actions, the general understanding of use cases is the functional module of the software, so it is the starting point of the design system analysis phase. The designer creates and explains the use case

When you use Microsoft Visio to draw a use case diagram today, you find that the include relationship is not found in the Visio UML use case, which is the "arrow" + "Finally, a workable solution was found:First: Open the UML Model diagram, software and database, Microsoft vi

In UML class diagrams, the following relationships are common: generalization (generalization), implementation (realization), Association (association), Aggregation (Aggregation), composition (composition), dependency ( Dependency). Can be used in the PowerDesigner software, relatively simple. 1. Generalization (generalization) Generalization relationship: An inheritance relationship that represents a gener

. Generalization (inheritance)Generalization relationship: Used when two classes have generalized relationships, such as fathers and children, animals and tigers, plants and flowers.The code rose generates is simple, as follows: #include "C11.h"Class C12:public C11... {}; 5, here by the way to mention the templateThe code for the above diagram corresponds to the following: TemplateClass C13... {}; Repeat here again, in fact, after reading the above de

Relationship between classes (1)In a software system, classes do not exist independently. Classes and classes have various relationships. for different types of relationships, UML provides different representations.1. AssociationAssociation is the most common relationship between a class and a class. It is a structured relationship used to indicate the relationship between a Class Object and another class o

Php design pattern-UML class diagram. Preface I have been using php for more than two years. I have prepared and written some frequently-used design patterns based on my own practical experience. of course, I should first understand the design patterns before using the design patterns. I have been using php for more than two years. I have prepared to write frequently-used design patterns based on my own pra

I,Description of the use case diagram Use Case (Use Case) Refers to the interaction between the system's external things (activists, devices, or external systems) and the system. It expresses the functions of the system, that is, the services provided by the system. A Use Case chart is a visualization tool used to describe use cases. It uses simple graphical elements to represent the system's activists, use cases, and their relationships, accurate

In the UML 9 kinds of diagram, the use case diagram is the more important one kind of diagram, it is the diagram which produces in the system analysis stage, from the function carries on the analysis to the system the model, has played the strategically advantageous position

First, the concept of a deployment diagramThe so-called deployment diagram, translated into English is Deployment Diagram, which is used to display the system software and hardware physical architecture. From the deployment diagram, we can learn about the physical relationships between

Tags: font public service Ted Python simple folder reason nesting history Brief introduction Package diagrams is a description of the relationship between packages and packages, showing the dependencies between modules and modules in the system. A package diagram can consist of any UML diagram that can hold elements such as classes, interfaces, components, use c

Class digraphs are the most commonly used diagrams in UML. A class, which is a rectangle at a distance and a rectangle at a closer look, but sometimes a rectangle or a set of two or three rectangles. A class usually has some attributes and methods. The class diagram is shown as follows: This class chart consists of three rectangles, including class names, attribut

The existence of UML time series diagramIn the previous article, the UML class diagram was recorded, and the class diagram was used to describe the classes needed in the code and the relationship between them, and the whole program framework was displayed in front of us, like a painting, there are some people with wate

UML class diagram Using UML class diagrams, we can express the static content of classes and their relationships. In the class diagram, we can show the member variables and member functions of the class, as well as the inheritance and reference relationships between classes. In short, we can depict all source code-leve

describe complex program logic or multiple parallel transactions. A collaboration diagram is a graphical representation of the related interactions between objects, and can also have hierarchies. Multiple objects can be used as an abstract object, through decomposition, using the lower-level collaboration diagram to express the collaboration between the multiple objects, which can alleviate the complexity

Use case diagram (Use Case daigrams) The Use Case view of UML is the view of the external feature description of software products. It describes the demand for software products from the user's perspective rather than the developer's width, and analyzes the functions and dynamic behavior required by the product. The

I,UML diagram and code representation of class-to-class relationships The relationship between classes plays an important role in understanding object-oriented objects. I was often asked this question during interviews. Here I will introduce it.There is a relationship between the class and the class:(1) Generalization)(2) Association)(3) Dependency)(4) Aggregation) UML