This video provides an introduction to Liferay Data Sets, which are designed for visually assembling, managing, and displaying your own data. Data sets are built directly on top of Liferay Objects.
The core concept of data sets is completing the Model-View-Controller pattern:
Model: Liferay Objects
Controller: Object actions
View: Data sets, which visually assemble and display the data
A data set is a structured, reusable collection of data. It is a flexible way to retrieve data from any compatible headless API and use it across multiple components and applications within Liferay.