Do you need a refresher on how to build KNIME components?
Components are basically self-made KNIME nodes that you can build yourself in KNIME Analytics Platform. It allows you to encapsulate a workflow or parts of a workflow inside the component and by that bundle and reuse whatever the workflow is doing.
To create such components, you need configuration and widget nodes that enable lots of customization and interactivity.
Check out the cheat sheet “Components with KNIME Analytics Platform”, available for download here: https://www.knime.com/sites/default/files/2022-11/CheatSheet_Components_A3_Web.pdf