Below, lessons learned are summarised:
1 PaaSport strengths
According to the expert opinions technical highlights of the project include the solid specification of the Unified Cloud Platforms Interface Model and API and the usefulness of portability libraries and monitoring approach.
All demonstrators successfully validated the PaaSport approach in the frame of distinct use cases. PaaSport concepts might be extremely useful, when following a platform strategy. At the same time the PaaSport libraries improve significantly the flexibility of deployment of cloud solutions. An important application domain might be the unified deployment for a large variety of services with different technology backgrounds and infrastructure.
2 PaaSport weaknesses
A major drawback from the point of view of PaaS providers might be the rating functionality of PaaSport, as it might endanger creating long-lasting provider-customer relations.
At the same time Migration is still a challenge, as different deployment strategies of the PaaS offerings/provider genuinely make it difficult to implement fully automatic migration.
The PaaSport Marketplace works straight forward for simple cloud application and services, but requires high adaptation costs for multi-tenant and high complex cloud applications.
3 PaaSport sustainability suggestions
The expert expressed the opinion that that PaaSport as a marketplace might have commercial success, but only if the functionality will be expended to cover all PaaS domains. This goal will be difficult to achieve, as currently the PaaS market is driven by differentiation.
But at the same time, they underline the importance of PaaSport as a framework and the contribution of PaaSport APIs and tools to cloud interoperability, which might constitute strong USP’s in near future. In addition, the experts recommended to add functionality for migrating data between database versions and to actively support Docker and/or latest OpenShift versions.