Locating web elements using relative indentification

[huaxing-yuan]

Problem

In some cases, the identification of web element is tough,
For example: Identify an element in a cell of table, identify an element which has no usable identifier.
In these case, maybe using relative identifier would help.

That is describing an element using another element and the relation of current element.

For example:
A textbox with in the column header and row header
A button on the same y-axis of it's label....

To achieve this we need to add "relatedElement" in "ElementDescription".