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interface of vehicles2. Engine assembled into cars, car radios converged into cars3. Taxis are inherited from automobiles4. The taxi and the driver are many to many two-way correlation relations, the driver one-way correlation driving licence (one driver holds a driving licence)5. Drivers rely on onboard WiFi
Use case diagram example
Use case diagram:
Partici
Class diagram, object diagram, role diagram:
I. Basic Graph categories in UML:In UML 2, there are two basic graph categories: structure diagram and behavior diagram. Each UML diagram belongs to the two diagrams. The purpose of the
both classes can be associated with one or more other classes.
A class chart can be integrated with many other concepts, which will be introduced in subsequent articles in this series.
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Sequence Diagram
The sequence diagram
I. Introduction to the time sequence diagram (Brief Introduction)
Create a sequence chart:
II
Design -- Right-click --- add digoal -- seque
Sequence dimo-elements)
Role)
Object)
Lifeline)
Focus of control)
Message)
Self-message)
Combined fragments
Iii. sequece dimo-example
collaboration chart is also an interactive chart. They transmit the same information like a sequence chart, but they do not care when the message is transmitted, but only care about the role of the object. In the sequence diagram, the role of the object is placed above, and the message is a connection line.
The class or object name (or both) is attached to the
has behaviors and States. The object State is determined by the current action and condition of the object. Status chart statechart diagram shows the possible state of the object and the transfer caused by the state change.The model example shows how to create an online logon system for a bank. The logon process includes entering a valid password and personal account, and then submitting it to the system f
arranged from top to bottom in chronological order.
Collaboration Diagram
A collaboration chart is also an interactive chart. They transmit the same information like a sequence chart, but they do not care when the message is transmitted, but only care about the role of the object. In the sequence diagram, the role o
Introduction
What is the relationship between use case diagrams, class diagrams, activity diagrams, and sequence diagrams?
What's the role of a timeline diagram?
First to simulate the Chibi of the War of the Kingdoms of the sequence diagram, first know what it looks like, and then in-depth introduction:
Small par
. Things in a sequence diagram
Message symbol:1. Simple message: Solid line + regular arrows. Is the transfer of the control flow from one object to another.2. Asynchronous message: Solid line + half arrow. After the message is sent, the sending object can continue its operation without waiting for the receiving object to reply.3. Sync message: Solid line + solid triangle representation. After the messag
the concurrent activities. Both the branch line and the confluence line are expressed by a bold horizontal or vertical line segment (synchronous line ).
14. Sequence Diagram 1. Definition: sequence diagram, also known as sequence diagr
In object-oriented dynamic modeling, four types of graphs are used to establish behavior interaction between entities: Stage divisor, sequence divisor, and communication divisor ), activity digraphs, where, "Sequence Chart"And"Collaboration diagram"Similar messages are expressed.
A sequence
first, the conceptThe interaction diagram describes the dynamic cooperative relationship between objects and the order of behavior in the process of cooperation. Interaction diagrams are often used to describe the behavior of a use case, to show the objects involved in the use case and the message delivery between those objects, i.e. the implementation of a use case.
there are two forms of interaction graph, Order
Object-oriented modelObject-oriented model is a model that uses UML (Unified Modeling Language) to describe the system structure, and it realizes the working state of the system from different angles. These graphs facilitate information exchange between users, managers, system analysts, developers, testers, and other personnel. This article mainly introduces use case diagram, Sequence
Object-oriented model
Object-oriented model is a model that uses UML (Unified Modeling Language) to describe the system structure, which realizes the working state of the system from different angles. These graphics help communicate information between users, managers, system analysts, developers, testers, and others. This article mainly introduces use case diagram, Sequence
Document directory
Add a self-called Message Element
Use the call Message Element
Use auto-extended message options
Use to create a message symbol
Add asynchronous Link
Use a combination of fragment Elements
Save Graph
A sequence diagram describes the interaction modes between objects in chronological order. It uses the "lifeline" of objects and the messages passed between them to show how objects
to understand a new or unfamiliar code. Dependency graphs Use DGML (Directed graph Markup Language Direct graphical markup language) to display the relationships between different areas of code in an easy-to-understand graphical manner.Top-down design with use case diagrams, activity diagrams, and sequence diagramsThe power of the modeling tool is that it allows us to design the architecture of the application. These include defining common terminolo
Class diagrams and sequence diagrams are directly associated with program code in software system design. To be precise, program code is directly generated by class diagrams, A Sequence Chart can define a class chart method. The use case diagram is used to describe system functions and has no direct relationship with the sequ
message create message Destroy message Synchronize message Asynchronous message 4. Advanced sequence Diagram Interactive fragment: A complex sequence diagram can be divided into several small pieces, called interactive fragments types of interaction fragments: loop loop optional nbsp: selectable equivalent to
A powerful UML auxiliary toolQuick sequence dimo-editorIt is specially used to draw sequence graphs. The key is free of charge.
Advantages:
The sequence digoal can be generated instantly by writing simple scripts.
With the image export function (PNG, GIF, BMP, JPG, PDF, and other formats), and can adjust the image size, the image is also very clear.
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