The vast majority of your business users will never use your Business Intelligence tools. There are only 5% (or 1 in 20) of your “users” of business intelligence (BI) tools that will want to “self serve” their information requests. Those users will actually learn the tool, need minor support, and will be on their merry little ways.
Unfortunately, most of the BI tools are built and designed for those users who will never use the tool. This huge misallocation of resources and effort will cost your company a lot of time and money. If you don’t tier your users, you will waste time building your data structures and advanced tools to appeal to a set of business users who consume reports, but don’t use the tools.