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PlantUML
This UML refactoring exercise is aimed at less technical people like analysts, testers and other non-programmers. The key takeaway message is clarifying the need for continuous refactoring to people who do not code on a daily basis.
Running and rendering
If you want to get started quickly, just copy the contents of plantuml/gilded-rose.puml, and paste it in https://www.planttext.com/
Several alternatives are available to render PlantUML, see https://plantuml.com/running.
Syntax
For the syntax of activity diagrams in PlantUML, please refer to https://plantuml.com/activity-diagram-beta
Exercise
You can find the original GildedRose challenge in the gilded-rose.puml file.
If you want to illustrate how this activity diagram got to this state, you can show the requirements and the files under the /history directory. These individual files show the evolution of the activity diagram.
Original state
