1. Sequence Diagram Example: Hotel System Sequence Diagram is an interaction diagram that details how operations are carried out - what messages are sent and when. Sequence diagrams are organized according to time. The time progresses as you go down the page.
  2. The sequence diagram may get convoluted if there are so many lifelines present in the system. When the sequence of the message flow modifies, then it may be possible to generate an incorrect outcome. Example of Sequence Diagram. The following example defines that in an interaction modeling can use a recursive message.

To get a better idea, check the example of a UML sequence diagram below. As the name suggests, structural diagrams are used to depict the structure of a system. More specifically, it is used in software development to represent the architecture of the system and how the different components are interconnected (not how they behave or communicate. May 05, 2021 (Find an example sequence diagram with an option fragment in the Sequence Diagram Templates and Examples section). Loop fragment is used to represent a repetitive sequence. Place the words ‘loop’ in the name box and the guard condition near the top left corner of the frame. My live ip.

Unified Modelling Language (UML) is a type of language used to illustrate the inner workings of a system, which include its actors, actions, roles, and classes. Originally used in the fields of software and engineering, UML has now made its way into business, and is a popular method of documenting business processes.

UML primarily uses diagrams to represent systems. These diagrams can be broken down into two types: behavioural UML diagrams, and structural UML diagrams.

Web Sequence Diagrams

UML is an extremely versatile and widely-recognised language. It is the standard language used by many developers, as well as an increasing number of business professionals. Its flexibility means that it can be applied to a number of IT or business-related situations, so that you can make it applicable to the system or technology you are using.

Part 2: How to Make a UML Sequence Diagram Effortlessly?

How to make a UML sequence diagram easily? Using EdrawMax to create your own UML sequence diagram.

Step 1: Open EdrawMax desktop software or EdrawMax web-based application.

Step 2: Navigate to [New]>[Software Development]>[UML Modeling]

Step 3: Select one UML sequence diagram template to edit on it or click the [+] sign to start from scratch. Also, you can use massive UML sequence diagram symbols and elements from libraries in left menu to customize your UML sequence diagram.

Step 4: Once finished your creation, you can export the file in multiple formats, including Graphics, PDF, editable MS Office file, SVG and Visio vsdx file.

Step 5: Besides, you can share your UML sequence diagram with others via social media and web page. Or publish your UML sequence diagram in EdrawMax template gallery to show your work with others.

Example1: Spring and Hibernate Transaction Sequence Diagram

Here, we provide an example of a UML sequence diagram that illustrates transaction management related to exception handling. The Spring application development framework for enterprise Java integrates Hibernate transaction management. When a certain business method is called, Spring Transaction Interceptor may intercept it. This creates a Hibernate session behind the background interceptor and starts a Hibernate JDBC transaction, so the business method will run in the context of the new transaction.

Example2: Facebook User Authentication Sequence Diagram

This is an example of a UML sequence diagram, which shows how to authenticate Facebook users in a web application to allow access to their Facebook resources. Facebook uses the OAuth 2.0 protocol framework, which enables web applications (called 'clients') that are not normally Facebook resource owners but represent Facebook users to request access to resources controlled by Facebook users and hosted by Facebook servers. The web application obtains an access token instead of using Facebook user credentials to access protected resources.


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According to this article, there are mainly three parts to illustrate what is UML sequence diagram, to tell you how to create UML sequence diagrams and to show you some UML sequence diagram examples. Generally speaking, a UML sequence diagram can visually represent a system along with its main actors, roles, and actions in order to make people better understand the information about the system.

EdrawMax is an easiest all-in-one diagramming tool, you can create UML sequence diagrams and any other type diagrams with ease! With substantial UML sequence diagram symbols and cliparts, making UML sequence diagrams could be as simple as possible. Also, it supports to export your work in multiple formats and share your work with others. Get started to create your UML sequence diagrams now!

'An example scenario is presented to demonstrate how a common issue tracking system would work:
(1) A customer service technician receives a telephone call, email, or other communication from a customer about a problem. Some applications provide built-in messaging system and automatic error reporting from exception handling blocks.
(2) The technician verifies that the problem is real, and not just perceived. The technician will also ensure that enough information about the problem is obtained from the customer. This information generally includes the environment of the customer, when and how the issue occurs, and all other relevant circumstances.
(3) The technician creates the issue in the system, entering all relevant data, as provided by the customer.
(4) As work is done on that issue, the system is updated with new data by the technician. Any attempt at fixing the problem should be noted in the issue system. Ticket status most likely will be changed from open to pending.
(5) After the issue has been fully addressed, it is marked as resolved in the issue tracking system.
If the problem is not fully resolved, the ticket will be reopened once the technician receives new information from the customer. A Run Book Automation process that implements best practices for these workflows and increases IT personnel effectiveness is becoming very common.' [Issue tracking system. Wikipedia]
The UML sequence diagram example 'Ticket processing system' was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Rapid UML solution from the Software Development area of ConceptDraw Solution Park.