Adoption of public cloud computing, in all forms, is continuing unabated. In 2015, 59% of
respondents stated that they were currently using SaaS models for cloud deployments,
and just under 30% each were using infrastructure-as-a-service (IaaS) and platform-as-aservice
(PaaS). In 2016, those numbers are very similar. Fifty-six-percent of respondents
are using SaaS, with another 14% planning to implement it in the next 12 months. We
asked respondents to indicate whether they were using or planned to use a public
or private IaaS offering, and more indicated a private IaaS service versus a public one
(36% using private versus 28% using a public IaaS). More than half of the organizations
indicated that they had no plans to implement public IaaS or PaaS. These responses seem
to indicate that most organizations are using SaaS currently, with some using or planning
to use private IaaS (private cloud in a public cloud provider environment) and fewer
using or planning to use public IaaS or PaaS offerings. For those planning to deploy cloud
services in the next 12 months, SaaS was ranked the highest at 14%.