Requirements for a better Business Taxonomy Part 4

My last post talked about how we can categorize a company in three different ways:  1) Who their customers or audience are. 2). How they serve their clientele. 3). What business need do they fulfill for their clientele. This is what I have heard called a faceted taxonomy. But I prefer it to be called a multidimensional taxonomy. Now we must ask ourselves are there anymore dimensions which could be useful. Our team has found one which is a little goofy. This is what I call the channel dimension. A company will provide a service, but with all these new means of reaching clients via mobile or internet. Maybe we can have a small domain which defines these different ways of reaching people. So for our example of healthcare EMR software, this company could channel their services through licensed software installed at the client, or via a subscription of hosted software also known as Software as a Service (SaaS). Could anyone think of another useful dimension for a Business Taxonomy?