Install umbrello by entering the following commands in the terminal:
sudo apt update sudo apt install umbrello
Description:
UML modelling tool and code generator
Umbrello UML Modeller is a Unified Modelling Language diagram editor for KDE. It can create diagrams of software and other systems in the industry-standard UML format, and can also generate code from UML diagrams in a variety of programming languages. . This package is part of the KDE Software Development Kit module.
Homepage: http://www.kde.org/
Version: 4:17.12.3-0ubuntu2
Section: universe/devel