I have created the Category Links application to show how to use data in a simple model through web components. Both the model and its corresponding web components for displaying, adding, editing, removing and saving data are part of the [dartlero_category_links] (https://github.com/dzenanr/dartlero_category_links) application project.
A model for the Category Links application has two concepts and one relationship (Figure 1).
![Alt Figure 1: graphical model] (/img/dartlero/category_links_model.png)
Figure 1: Graphical model.
The application page uses several web components. Two of them are presented in Figure 2.
![Alt Figure 2: web components] (/img/web_components_with_dartlero/web_category_links.png)
Figure 2: Web components.
The model is explained in the [Category Links Model in dartlero] (https://docs.google.com/document/d/1I4PX1rBX7BemxYM3MitUN75UKwExUCLxhG8nIrbhBXs/edit?usp=sharing) document. The web components will be explained in the next blog post.