Specification of sequence diagrams is not easy. They are more complex than they appear to be and support provided by most UML modeling tools is often limited (e.g. no advanced checking).
Sometimes the easiest way to draw a model is to “write” it down. These tools will render nicely looking UML diagrams from a few lines of text.
From OpenAPI to UML and back! – A tool to reverse engineer your web APIs, modify the resulting UML model and regenerate the OpenAPI file from it.
Roles are meant to capture the dynamic and temporal aspects of real-world objects. Modeling roles is one of the trickiest aspects in conceptual modeling. Here I present you my solution in the form of a conceptual modeling pattern for roles
Ever thought about using Slack as your front-end modeling tool? See how you can ask your UML Slack Chatbot App to create UML elements using commands in Natural Language
See some conclusions on the usability of UML tools after analyzing over 10h of video recordings of students trying to draw a UML class diagram. Hint: there is plenty of things to improve.