How to Create a UML Object Diagram

Illustrate the inner workings of a system
online shopping

Part 1: What is UML Object Diagram?

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.

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 Object Diagram Effortlessly?

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

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

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

Open UML object diagram template

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

customize a UML object diagram in EdrawMax

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.

Save or export UML object diagram in EdrawMax

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

share and publish UML object diagram

Part 3: UML Object Diagram Example

Online Shopping Login System

This is an UML object diagram, which shows an example of some runtime objects in the login process with a network user. The loginCtrl class instance of LoginController has several slots, integer and string type structural features and corresponding value specifications. The instance of LoginController is also associated with the instance of UserManager, CookieManager and Recorder. In LoginController, UserManager and HibernateUserDAO (Data Access Object) share a single instance of the Logger.

Online Shopping Login System


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Part 4: Conclusion

According to this article, there are mainly three parts to illustrate what is UML object diagram, to tell you how to create UML object diagrams and to show you a UML object diagram example. Generally speaking, a UML object 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 object diagrams and any other type diagrams with ease! With substantial UML object diagram symbols and cliparts, making UML object 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 object diagrams now!

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