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We can define design with very simple DSL. Sorry Visio or Enterprise Architect, I don’t include you in this bucket (although I have to admit I haven’t used EA for long time). Of course you don’t want to have them very detailed, but at high level designer intentions and considerations are sometimes good to document.īut the tool that is used for designing these diagrams has to be very easy to use and flexible. But Sequence and Component diagrams are very useful to document high-level design decisions. I personally created only few use case and flow chart diagrams during my career. Interaction diagrams (especially useful is Sequence diagram from this bucket).Structure diagrams (except Class diagram).So when we need Class diagram, it’s smart to generate it from live code. You can generate new diagram from live code easily. Low-level design may change easily and you don’t want to keep outdated diagrams around. There’s no need to create logic and tests, just APIs of the design.Īnd of course when you don’t need such generated diagram anymore, just wipe it out. You may find some important facts about the design while creating prototype. When we need to sketch class diagram upfront to consult design with the team, I would suggest to create prototype with desired class structure instead and generate class diagram from the live code (again with IDE). You just need to use plugin called ObjectAid. It is also easy with Eclipse or its various flavors (e.g. To find out how to create such diagram, read this IntelliJ IDEA documentation. IntelliJ idea provides this as part of its paid version: When you need to analyze an existing code base, class diagrams can be easily generated by your IDE from the existing code. To communicate a suggested design with the team.Creating UML Class Diagramsįrom my point of view, UML class diagrams are needed very rarely. This short blog post will describe a much better way to create UML diagrams.īut first, you may argue that UML's importance in today’s agile software development world is fading out. I find such workflows very time consuming and wasteful. (person.Historically I disliked creating design UML diagrams, because the tooling for it mostly requires drawing boxes and connecting them with lines or arrows. IPerson person= (IPerson) resource.getContents().get(0) Resource resource = resSet.getResource(URI Resource resource = resSet.createResource(URI ResourceSet resSet = new ResourceSetImpl() Register the XMI resource factory for the. IPerson person = factory.createIPerson() create the content of the model via this program MymodelFactory factory = MymodelFactory.eINSTANCE Retrieve the default factory singleton Package .observers import model.IPerson import model.IPersonList import model.ModelFactory import .notify.Adapter import .notify.Notification import. public class ElementObserver