All functionality that uses a dragging movement for operation can be achieved by a single pointer without dragging, unless dragging is essential.
The purpose of this success criterion is to ensure that users are not required to perform drag-and-drop operations as not all users have the required dexterity to perform these actions.
How to Meet
If interactive content makes use of drag-and-drop operations, authors need to provide an alternative method to achieve this operation using a pointer device. For example, allow the user to click an object to activate it and then click buttons to move the object around.
The knowledge base does not currently cover the creation of accessible input modalities. Refer to the WCAG guidance documents for additional information.