Sequence Board Game Online
Uml Sequence Diagram Generator
Plantuml Sequence Diagram Online

Easily draw UML diagrams with an online UML software that features powerful UML diagramming tools, on-the-fly UML syntax checks and a neat user interface. Visual Paradigm Online supports UML diagrams like Class, Use Case, Sequence, Activity, Deployment, Component, State Machine and Package Diagram.

Sequence diagrams are a popular dynamic modeling solution in UML because they specifically focus on lifelines, or the processes and objects that live simultaneously, and the messages exchanged between them to perform a function before the lifeline ends.
SequenceDiagram.org is an online tool / software for creating UML sequence diagrams. Founded in 2014 with the purpose to improve the efficiency when creating and working with sequence diagrams by combining text notation scripting and drawing by clicking and dragging in the same model.
Sequence Diagram. Visualize the interactions between users, systems and sub-systems over time through message passing between objects or roles. If class diagram represents the skeleton of classes by showing their attributes and methods, UML sequence diagram complete the classes by representing the programming logic to be filled in methods' body.
Unlike many other online drawing tools, VP Online has incorporated the Resource Centric interface, which makes Sequence Diagram editing very intuitive and straight forward. The free UML editor comes with no ad, no limited period of access and no limitations such.

IntroductionCelebrating 20 Years of UML 1.1 One of the key figures in the software development community, Grady Booch describes the “grand journey” that led to the development of OMG UML standard.
Watch Video

IntroductionWhat is UML?If you're new to modeling and UML®, start here.
Read More

ExploreUML VendorView a directory of vendors of UML-compliant products.
Read More

Adopted ProfilesUML ResourcesThis is a useful link to UML® resources.
Read More

MIDDLEWAREUML SpecificationsThis page provides a summary of UML specifications.
Read More

Learn moreShow What You Know Become an OMG Certified UML Professional™!
Read More

Get it nowTrainingVisit OMG member companies that provide training in UML®.
Read More

NEWS & ARTICLES

Find recent OMG® & UML® related news.

SUCCESS STORIES

See listing of UML® success stories.

CURRENT SPECIFICATION

View the current UML® specification.

Here we provide several UML diagrams of different types, all part of a simple fabricated Online Shopping model:

Online shopping UML use case diagram examples

Purpose: Provide top level use cases for a web customer making purchases online.

Summary: Web customer actor uses some web site to make purchases online. Top level use cases are View Items, Make Purchase and Client Register.

Credit card processing system

Purpose: Define major use cases for a credit card processing system (credit card payment gateway).

Summary: The merchant submits a credit card transaction request to the credit card payment gateway on behalf of a customer. Bank which issued customer's credit card is actor which could approve or reject the transaction. If transaction is approved, funds will be transferred to merchant's bank account.

Website administration

Purpose: Website management or administration UML use case diagrams example.

Summary: Website Administrator actor could manage user groups, users, user sessions, and logs. Help Desk staff uses a subset of functions available to the Website Administrator.

Online shopping domain model Uml sequence diagram tool

Purpose: Show some domain model for online shopping - Customer, Account, Shopping Cart, Product, Order, Payment.

Summary: Example of a UML class diagram representing online shopping domain. Each customer could have some web user identity. Web user could be in one of several states and could be linked to a shopping cart.

User account UML state machine diagram example Uml Sequence Online

Purpose: An example of user account life cycle in the context of online shopping, and shown as UML protocol state machine diagram.

Summary: Every company having customers maintains customer accounts and supports a complete life cycle of the account from its creation until it is closed. There are differences in what are the stages (states) in the account's life cycle, and what are conditions or events causing account to change its state.

Online bookshop UML sequence diagram

Purpose: An example of high level UML sequence diagram for online bookshop.

Summary: Online customer can search book catalog, view description of a selected book, add book to shopping cart, do checkout.

Online bookshop communication diagram

Purpose: An example of UML communication diagram for Online Bookshop.

Summary: Web customer actor can search inventory, view and buy books online.

Online shopping activity diagram

Purpose: An example of activity diagram for online shopping.

Summary: Online customer can browse or search items, view specific item, add it to shopping cart, view and update shopping cart, checkout. User can view shopping cart at any time. Checkout includes user registration and login.

Online shopping interaction overview diagram

Purpose: An example of interaction overview diagram for online shopping.

Summary: Customer may search or browse items, add or remove items from shopping cart, do checkout.

Business flow - process purchase order

Purpose: An example of business flow UML activity diagram to process purchase order.

Summary: Requested order is input parameter of the activity. After order is accepted and all required information is filled in, payment is accepted and order is shipped.

Web application Login Controller object diagram

Purpose: An example of UML object diagram which shows some runtime objects involved into login process for a web user.

Summary: An instance of Login Controller class is associated with instances of User Manager, Cookie Manager, and Logger. Login Controller, User Manager, and Hibernate User DAO (Data Access Object) share a single instance of Logger.

Online shopping component diagram

Purpose: An example of a component diagram for online shopping.

Summary: The diagram shows 'white-box' view of the internal structure of three related subsystems - WebStore, Warehouses, and Accounting. WebStore subsystem contains three components related to online shopping - Search Engine, Shopping Cart, and Authentication. Accounting subsystem provides two interfaces - Manage Orders and Manage Customers. Warehouses subsystem provides two interfaces Search Inventory and Manage Inventory used by other subsystems.

Online shopping web application manifestation

Purpose: An example of manifestation diagram for a web application.

Summary: Web application archive artifact book_club_app.war contains several files, folders and subfolders. Several components are shown on the