Mandatory - Assitive - Ordinal Identifier properties

Quick test identify the objects by learning the default property values is called mandatory properties.
Ex - attached text, native class, alt, html tag, image type.

If the mandatory properties are not sufficient to create a unique object description then Quick test uses Assistive properties of the object to identify uniquely.
Ex - Id

If the mandatory and assistive properties are not sufficient to create a unique object description then Quick test uses Ordinal identifier to create a unique description of the object.
Ex - index, location, creation time.