![]() ![]() ![]() Attachment: InteractionConstraintProperties.Attachment: InteractionOperandProperties.png.Attachment: sequenceDiagramErrorMessage.png A UML Sequence diagram shows how messages go back and forth between objects over time. There are 3 types of Interaction diagrams Sequence diagrams, communication diagrams, and timing diagrams.These are all set to something, but it's not clear to me what I have to set them to. Ein Sequenzdiagramm ( englisch sequence diagram) ist ein Verhaltensdiagramm, welches eine Interaktion im Sinne der Unified Modeling Language (UML) grafisch darstellt. I can see when I click on the InteractionOperand, there is a "Guard" property, and when I click the Edit button for that, I see that there is a "Specification" property. Quote: The required feature 'uml::Constraint::specification' of 'prescreen::prescreen::CombinedFragment34::InteractionOperand0::guard' must be set. Implementation designs of each new feature I’m working on are loaded with Sequence diagrams. Messages Communication between objects is depicted using messages. ![]() Lifelines A lifeline is a named element which depicts an individual participant in a sequence diagram. A sequence diagram is an interaction diagram that emphasizes the time-ordering of messages. Here is a snapshot of my sequence diagram, showing the CombinedFragment:Īs you can see from the picture, there is a red X on the constraint, and when I hover on that, it says: The most used by me (and my favorite) UML diagram is Sequence Diagram. Sequence Diagram Notations Actors An actor in a UML diagram represents a type of role where it interacts with the system and its objects. I have managed to add an "opt" CombinedFragment, and I added something that looks like a constraint, which is shown in the picture in the SO posting. I also found this:, but I still can't figure this out. The picture in the answer shown here: is close to what I need, except that there is no "else". I found a StackOverflow question/answer that shows what I want it to look like. I don't understand what I have to drop where. 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. I understand that I need to add a Combined Fragment, and it's probably the "opt" or perhaps "alt" Interaction Operator, but that's about all I can figure out. is an online tool / software for creating UML sequence diagrams. There are two steps that I need to show as conditional, on a variable expression. Enter sequence number for each Messages sequenceNumber property. I posted this question on StackOverflow, but perhaps it would be better here. ![]()
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