What is biggest – SaaS or S+S?

Doing a determanistic view on SaaS and Software + Services, I some times feet it difficult to understand if Microsofts S+S strategy is bigger than SaaS. Doing a search on my most favorite search tool www.google.com did not help me at all.

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We need to define and develop the different projections on this, and as google clearly state, Microsoft did not push more momentum to the S+S market, than the whole SaaS market. So what is the difference? Stay tuned!