Create Diagram Image Shape with API

Your diagrams are not necessary to be modeled just with the standard notations. With the Diagram Image Shapes, you can enrich your diagram with customized image files. The Diagram Image Shapes can be created via the prattle of the diagram, as well as using Open API. This article will show you how to create Diagram Image Shapes from an image file deployed in your plugin using Open API. Read more

Working with Master View

When your project is simple, you are able to express all of the design ideas with just a few diagrams. The diagrams are simple and self-explanatory. Each of them represents a distinct design idea and there is no overlapping between diagrams.

When you are dealing with a complex project, you may need to draw multiple diagrams to represent different contexts. You need to borrow shapes from a diagram to make them appear in other diagrams (i.e. contexts). In fact, this is extremely common when modeling with class diagram and business process diagram. Take UML class diagram as an example, there may be a domain diagram that presents all the entity classes and, another diagram that presents the associations and dependencies between a specific controller class and its related entity classes. So in this case, both diagrams contain the same set of entity classes.

Instead of re-creating those classes again and again in different diagrams, Visual Paradigm allows you to “re-use” them. Through simple copy and paste (Ctrl-C and Ctrl-V), you can easily copy a shape from one diagram to another. Each shape is formally known as a “view”. So with this, you can create multiple views for a model element in representing different contexts. Changes made on a shape are all synchronized to other instances that appear in other diagrams without extra effort. This is great, but there is a drawback though.

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10 Tips to Create Professional Use Case Diagram

There are two common misunderstanding about use case modeling or UML use case diagram. One is that, use case diagram is too simple, as it does not explain anything important and it is not worth drawing. Another misunderstanding is just opposite to the first one. Some people believe that use case diagram is so powerful that can represent many different aspects of a software, from describing system requirements to modeling the internal behaviors of the system. So what is use case? What is use case diagram and is use case modeling simple or powerful?

Use case modeling is simply an answer to “What do the users (customers) want”. It allows you to visually represent the goals that users want to achieve through using the final end product, which can be a system, a software, a program, etc. Use case modeling is a useful technique in establishing a solid foundation for software developers to develop software system that meets with customers’ needs. While the notations applied in a use case diagram seem simple and do not express much detailed, the way how use cases are collected, organized and elaborated do significantly influence the direction of the software development lifecycle and thus the quality of the final software product. In this article, we will go through ten tips that can maximize the effect of drawing use case diagram. We are not going to explain what are use cases in detail but some of the key concepts regarding to UML modeling, use case diagram and requirements capturing will be covered.

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Organize Data Models under Use Cases

In helping you organize your modeling project, use cases can act as generic containers for all software development artifacts. Development teams can group and locate design artifacts by navigating use cases.

In this tutorial we are going to show you how to create a new data model (i.e. entity relationship diagram) and associate that with a use case. And in future, you can easily identify existing associations as such by use cases and conveniently, be taken to the related diagrams right on the spot in just a few clicks.

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Show Details of Model Elements in Tabular Form

When the default attributes do not suffice to describe your model elements, you can add your own custom ones by using tagged values. These custom attributes can be added to model elements in various diagrams, such as an actor in use case diagram.

So if you are looking at model elements in a diagram, just how do you show their tagged values? This tutorial will show you how.

As an example, we will walk you through how to show tagged values associated with devices in an ArchiMate diagram.

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How to Import Microsoft Visio Stencils

When drawing UML diagrams (e.g. use case diagram), sometimes you might find yourself in a place where you could use other non-UML shapes, in order to explain the concept better. That’s why we made a collection of predefined stencils available for you. You can even import stencils from Microsoft Visio.

This tutorial will show you (1) how to use predefined stencils that come with VP-UML and (2) import stencils from Visio to VP-UML.

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Group Generalizations with Generalization Set

When working on a use case diagram, you may have a superactor with a few subactors underneath from generalization. For formatting purpose, you may want to group the lines of generalization together for a more organized presentation.  This can be done by creating a generalization set.

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How to Perform Refactoring

In an ideal world of system design, we’d probably want to create a generic library to store common components for reuse. That way, we can avoid creating the same components over and over again. Also, any changes you need to make to a component will automatically be rippled down to all projects which point to the same generic library.
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What to do If You Cannot Resize Shapes in a Diagram

Sometimes when you reopen your project and try to edit the diagram, you find that the shapes in your diagram are not resizable. This probably caused by you have turned on the auto-fit size option of your diagram. This could be caused by you accidentally turned on this option, or your other team member turned it on when they editing the same diagram in teamwork environment. By turn on this option, all the shapes in your diagram will be fitted its size automatically, thus, all the resize points around the shape will be disabled. Read more

How to Duplicate a UML Diagram

You can clone a source diagram into your target diagram, so that you can make modify the diagram without affecting the source diagram. This article will demonstrate how to clone a  diagram using VP-UML and modify the diagram afterward.

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