I am facing problem to show complete hierarchy of consumer product for a company where products can be up to 500. And hierarchy can be up to 7 level. I am attaching 4 level horizontal & vertical hierarchy view, please vote for which one is better. You can also share other better option. Thanks!
When u have a more than 4 level of hierarchy it becomes harder for user to see the hierarchy structure i.e Parent>child1>child2>child3>sibling1>sibling2>Child4 in this case you lose context of in which parent does the child exist or in which child does a sibling exist. it is always good to use a lines that connects to each other with a indention and clearly shows the structure of a hierarchy.
Check my attached examples. I have made a version using grey shades , each level has a different shade and this is upto 4 level and if hierarchy extends beyond that the last color will repeat (as too many shades spoils the design)
Hope this helps!! Let me know if i can help you more