Let's say you have a browsable hierarchical taxonomy of categories. These categories can be up to like 7 deep, and number in the hundreds. A user can expand and contract the various trees of categories. Clicking on one of the categories will take you to a page detailing the category.
Does anyone know of any research that provides insight into the
recommended number of categories and subcategories a store should
I know best practice is to keep the options simple and easy to scan
(7-12), but for an ecommerce site it tends to be whatever is
necessary to adequately cover the breadth of your products. I need
some evidence on where to draw the line.