Class Diagram To Sequence Diagram

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  1. Sequence Diagram Tool
  2. Sequence Diagram Online

Examples by Technology or Application Domain

Class diagram: You can use a class diagram to illustrate the relationships between the classes. Sequence diagram: Sequence diagram lets you show the messages sent among the instances of these classes and the order in which they are sent. For more information,refer the following link.

  • Sequence diagrams describe interactions among classes in terms of an exchange of messages over time. They're also called event diagrams. A sequence diagram is a good way to visualize and validate various runtime scenarios.
  • Sequence diagrams are a type of Unified Modeling Language (UML) diagram that shows interactions over time. They’re also called event diagrams. A sequence diagram is a good way to visualize and validate various runtime scenarios. Sequence Diagram Notations. Class Roles or Participants Class roles describe the way an object will behave in context.
Online shopping UML diagrams
Ticket vending machine UML diagrams
Bank ATM UML diagrams
Hospital management UML diagrams
Digital imaging and communications in medicine (DICOM) UML diagrams
Java technology UML diagrams
Application development for Android UML diagrams
Software licensing and protection using SafeNet Sentinel HASP security solution

Examples by Types of Diagrams

Activity diagram examples
Class diagram examples
Communication diagram examplesDiagram
Component diagram examples

Sequence Diagram Tool

Composite structure diagram examples
Deployment diagram examples
Information flow diagram example
Interaction overview diagram examples
Object diagram example
Package diagram examples
Profile diagram examples
Sequence diagram examples
State machine diagram examples
Timing diagram examples
Use case diagram examples

Use Case Diagrams

Business Use Case Diagrams

Airport check-in and security screening business model
Restaurant business model

System Use Case Diagrams

Ticket vending machine
Bank ATM UML use case diagrams examples
Point of Sales (POS) terminal
e-Library online public access catalog (OPAC)
Online shopping use case diagrams
Credit card processing system
Website administration
Hospital Management
Radiology diagnostic reporting UML use case diagram example
Software protection and licensing UML use case diagram example

Information Flow Diagrams

Scheduled Workflow information flow for the IHE Radiology Technical Framework

Class Diagrams

Abstract Factory Design Pattern

Domain Models

Library domain model
Bank account class diagram example
Online shopping domain model
Health insurance policy UML class diagram example

Digital imaging in medicine - DICOM model of the real world
Sentinel HASP software licensing domain UML class diagram example


Digital imaging in medicine - DICOM Application Hosting API
Java util.concurrent API UML class diagram examples

Implementation Models

Android Camera implementation classes
Sentinel HASP licensing UML class diagram of Aladdin package

Object Diagrams

Web application Login Controller object diagram

Composite Structure Diagrams

Bank ATM UML composite structure diagram example
Apache Tomcat 7 web server UML composite structure diagram example
Observer design pattern as UML collaboration use example

Package Diagrams

Multi-Layered Application Model
Multi-Layered Web Architecture
Java™ Platform Standard Edition 7 API UML package diagram example.
Java Servlet 2.5 API UML package diagram example
Java Servlet 3.0 API UML package diagram example
Spring and Hibernate ORM data access packages and classes
(Data) Transfer Object (Value Object) design pattern package template

Component Diagrams

Online shopping component diagram
Sentinel HASP licensing components

Deployment Diagrams

Online shopping web application manifestation
Online shopping web application UML deployment diagram
Clustered deployment of J2EE web application
Multilayered load balancing of J2EE servers
Apple iTunes UML deployment diagram
Android application deployment

Network Diagrams

Home network diagram example
Web application network diagram example

Profile Diagrams

Service Oriented Architecture Modeling Language (SoaML) UML profile diagram examples
Java Enterprise JavaBeans (EJB) 3.0 UML Profile
Digital Imaging and Communications in Medicine (DICOM) UML profile diagram example

Activity Diagrams

Business flow - Process purchase order
Business flow - Document management process
Electronic prescription service
Software design - Resolve software issue
Software licensing - activation of Sentinel HASP SL provisional product UML activity diagram example
Online shopping UML activity diagram
Ticket vending machine
Web security - Single Sign-On (SSO) for Google Apps

State Machine Diagrams

Water Phase Diagram as State Machine
Bank ATM behavioral state machine UML diagram example
Online shopping user account UML state machine diagram example
Java Thread states and life cycle UML protocol state machine example
Java EJB life cycle of a session object UML state machine example
Digital Imaging and Communications in Medicine (DICOM) Hosted Application life cycle UML protocol state machine example

Sequence Diagrams

Online bookshop UML sequence diagram
Submit comments to Pluck using DWR, AJAX, JSON
Facebook user authentication in a web application
Spring and Hibernate transaction management

Timing Diagrams

Medical domain - Stages of Alzheimer’s disease UML timing diagram example
Web user experience - Website latency UML timing diagram example

Communication Diagrams

Online bookshop communication diagram

Interaction Overview Diagrams

Online shopping interaction overview diagram
Submit comments to Pluck using DWR, AJAX, JSON

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Class diagram is a static diagram. It represents the static view of an application. Class diagram is not only used for visualizing, describing, and documenting different aspects of a system but also for constructing executable code of the software application.

Class diagram describes the attributes and operations of a class and also the constraintsimposed on the system. The class diagrams are widely used in the modeling of objectoriented systems because they are the only UML diagrams, which can be mapped directly with object-oriented languages.

Class diagram shows a collection of classes, interfaces, associations, collaborations, andconstraints. It is also known as a structural diagram.

Purpose of Class Diagrams

The purpose of class diagram is to model the static view of an application. Class diagrams are the only diagrams which can be directly mapped with object-oriented languages and thus widely used at the time of construction.

UML diagrams like activity diagram, sequence diagram can only give the sequence flow of the application, however class diagram is a bit different. It is the most popular UML diagram in the coder community.

The purpose of the class diagram can be summarized as −

  • Analysis and design of the static view of an application.

  • Describe responsibilities of a system.

  • Base for component and deployment diagrams.

  • Forward and reverse engineering.

How to Draw a Class Diagram?

Class diagrams are the most popular UML diagrams used for construction of softwareapplications. It is very important to learn the drawing procedure of class diagram.

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Class diagrams have a lot of properties to consider while drawing but here the diagram will be considered from a top level view.

Class diagram is basically a graphical representation of the static view of the system and represents different aspects of the application. A collection of class diagrams represent the whole system.

The following points should be remembered while drawing a class diagram −

  • The name of the class diagram should be meaningful to describe the aspect of the system.

  • Each element and their relationships should be identified in advance.

  • Responsibility (attributes and methods) of each class should be clearly identified

  • For each class, minimum number of properties should be specified, as unnecessary properties will make the diagram complicated.

  • Use notes whenever required to describe some aspect of the diagram. At the end of the drawing it should be understandable to the developer/coder.

  • Finally, before making the final version, the diagram should be drawn on plain paper and reworked as many times as possible to make it correct.

The following diagram is an example of an Order System of an application. It describes a particular aspect of the entire application.

  • First of all, Order and Customer are identified as the two elements of the system. They have a one-to-many relationship because a customer can have multiple orders.

  • Order class is an abstract class and it has two concrete classes (inheritance relationship) SpecialOrder and NormalOrder.

  • The two inherited classes have all the properties as the Order class. In addition,they have additional functions like dispatch () and receive ().

The following class diagram has been drawn considering all the points mentioned above.

Where to Use Class Diagrams?

Class diagram is a static diagram and it is used to model the static view of a system. The static view describes the vocabulary of the system.

Class diagram is also considered as the foundation for component and deployment diagrams. Class diagrams are not only used to visualize the static view of the system but they are also used to construct the executable code for forward and reverse engineeringof any system.

Generally, UML diagrams are not directly mapped with any object-oriented programming languages but the class diagram is an exception.

Class diagram clearly shows the mapping with object-oriented languages such as Java, C++, etc. From practical experience, class diagram is generally used for construction purpose.

In a nutshell it can be said, class diagrams are used for −

Sequence Diagram Online

  • Describing the static view of the system.

  • Showing the collaboration among the elements of the static view.

  • Describing the functionalities performed by the system.

  • Construction of software applications using object oriented languages.