Advantage Communications Group published an article comparing IaaS, PaaS, and SaaS on cost, security responsibility, and scalability, and where managed services fit into the mix.

Advantage mitigates the complexity of navigating a constantly evolving IT landscape. Through hundreds of global service provider partnerships, our deep bench of technology practitioners and groundbreaking software, we make it easy to optimize your network infrastructure. Advantage simplifies the sourcing process, implements your selected solution, reduces your costs, and filters out the noise to distill technology chaos into data-driven, decision-useful information. From procurement and provisioning through inventory and expense management, we optimize your communications solutions across voice, data, cloud, and mobility.