What is the «backend_model» for a backend configuration's form field?

dmitrii_fediuk (Dmitrii Fediuk) November 17, 2015, 5:18am 2

See also:

What is a backend config form field «frontend_model»?
How does Magento 2 save a backend config form vield value?
The methods \Magento\Framework\App\Config\ValueInterface::getFieldsetDataValue() and \Magento\Framework\App\Config\Value::getFieldsetDataValue() are declared but never used