View elements

Magento's primary view elements are its UI Components, containers, and blocks. The following is a brief overview of each of them.

Ui components

Under the vendor/magento/framework/View/Element/ folder, we can find UiComponentInterface and UiComponentFactory. The full set of Ui components is located under the vendor/magento/framework/View/Element/ directory. Magento implements UiComponent through a separate module called Magento_Ui. Thus, the components themselves are located under the vendor/magento/module-ui/Component/ directory.

Components implement UiComponentInterface, which is defined under the vendor/magento/framework/View/Element/UiComponentInterface.php file as follows:

namespace Magento\Framework\View\Element;

use Magento\Framework\View\Element\UiComponent\ContextInterface;

interface UiComponentInterface extends BlockInterface
{
    public function getName();
    public function getComponentName();
    public function getConfiguration();
    public function render();...