﻿ Single tenancy, the DEC Rainbow of SaaS | ZDNet  Single
tenancy, the DEC Rainbow of SaaS  Summary: If you believe the
private cloud vendor spin that simply by including certain
features in common you'll capture all the advantages of cloud
computing, you're making the same mistake that enterprises made
in the 1980s when they invested in DEC Rainbow PCs and IBM PS/2
Microchannel.  Amidst all the content that spewed out of SaaS
ERP vendor Workday's Tech Summit this week (disclosure: Workday
is a current client, although I was not able to attend its event
in person), there was one blog post that really set my teeth on
edge. Fellow Enterprise Irregular Josh Greenbaum and I rarely
see eye-to-eye on SaaS and his assertion that multi-tenancy is a
vendor, not a customer, issue — a supporting tweet called it the
'Intel Inside' of SaaS — elicited this counter-tweet from me:
"Yep, & single tenancy's the DEC Rainbow of SaaS." Knowing that
a single tweet doesn't carry the same weight as a blog post, I
decided to elaborat