I had some tables which just had one groupping, and the arrow (accordion-type) was working fine, and users understood perfectly. (As for now, I was using option B/groupping1).

Now, we have to introduce double groupping, which means that arrows might not be as userfriendly/easy to understand as they were, and specially in that position. What do you think works best, or do you have any other options in mind?

Thanks in advance

-its desktop based -tables have just one or many columns, having to use scroll vertical and horizontallyenter image description here

Data-table added for more info/context enter image description here

  • 1
    Possible duplicate of Is there any alternative UI for tree structure?
    – Dipak
    Mar 22, 2017 at 13:02
  • Thanks @Dipak, but it's not exactly the same. Im not asking for ways of visualizing differently a treestructure, but how to improve readability/usability in a tree structure data-table, having different levels. Mar 22, 2017 at 13:53
  • I'm confused. I can see the tree but not the table. Do you have another image that shows the full UI?
    – Matt Obee
    Mar 22, 2017 at 16:26

1 Answer 1


The first solution A for 2 groupings seems to be the most easily readable. The arrows can be more easily confusing than the + and - symbols. If I would rate the solutions, I could say A, C, B.

Another solution could be a tree structure with the folders as it shown in the next image:

Folder structure

This could be beneficial and easier understood because people are quite used to tree windows structure and they might feel very familiar with it.

  • Yeah option A (a hierarchy wich is basically the windows folder system) is propbably what Im going to implement. Thanks for the answer, Mar 28, 2017 at 15:05

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