The 36-month PaaSport project focuses on resolving the data and application portability issues that exist in the Cloud PaaS market through a flexible and efficient deployment and migration approach. To this end, PaaSport will specify and deliver a thin, non-intrusive Cloud-broker, to implement the enabling tools and technologies, and to deploy fully operational prototypes and large-scale demonstrators. PaaSport will enable European Cloud vendors to roll out semantically interoperable PaaS offerings leveraging their competitive advantage and the quality of service delivered to their customers, making their offerings more appealing and improving their outreach to potential customers, particularly the pan-European software industry. PaaSport will also facilitate European Software SMEs to deploy business applications on the best-matching Cloud PaaS and to seamlessly migrate these applications on demand. Therefore, PaaSport contributes to aligning and interconnecting heterogeneous PaaS offerings, easing application and data portability, and lowering switching costs. From a business perspective, PaaSport aims at lifting the barriers that cause the vendor lock-in problem, thus empowering Cloud customers and Cloud application developers and allowing them to choose freely the Cloud PaaS offering that best fits their needs. PaaSport is also expected to empower the position and encourage the entrance of European SME Cloud vendors in an emerging market. Led by the German ICT Federation BiTMI, the PaaSport consortium consists of twelve (12) partners, from seven (7) EU member states and associated countries, i.e. Germany, Sweden, Ireland, Latvia, Turkey, Greece and Cyprus.