Cloud-burstable applications are those built using an application deployment model in which an application runs in a private cloud or corporate data center and bursts into a public cloud (or clouds) when the demand for computing or storage capacity spikes.
Cloud-portable applications are applications that can take advantage of multiple clouds in order t0 prevent lock-in and/or make the applications more resilient in the face of cloud outages.
Bill Zack serves as a Senior Architect with Slalom Consulting in New York where he drives cloud strategy, architecture, and execution on both Windows Azure and Amazon Web services. Bill served as President of the International Association of Software Architects (IASA) for over 7 years.
It should be pretty clear why we want to build applications that are cloud-burstable. It would be a great advantage to be able to overflow our resource requirements into the cloud (or clouds). The advantage of this is that the company only has to pay for for extra compute and storage resources when they are needed. Read more of this post