Binh-Minh Nguyen presented an approach for migrating applications to interoperable clouds using a Cloud Abstraction Layer (CAL). CAL provides a generalized interface that abstracts away differences between cloud providers and allows applications to be deployed across multiple cloud platforms. It aims to address issues like vendor lock-in and allow easier migration of applications between clouds. A prototype was demonstrated using CAL to deploy a bioinformatics workflow as a service across OpenStack clouds.