Public Cloud

IT resources are provided as a service to a very large customer group in order to enable elastic use of a static resource pool.

Public Cloud How can the cloud properties – on demand self-service, broad network access, pay-per-use, resource pooling, and rapid elasticity – be provided to a large customer group?


A provider offering IT resources according to IaaS, PaaS, or SaaS has to maintain physical data centers. IT resources, nevertheless, shall be made accessible dynamically.


The hosting environment is shared between many customers possibly reducing the costs for an individual customer. Leveraging economies of scale enables a dynamic use of resources, because workload peaks of some customers occur during times of low workload of other customers.

Public Cloud

Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service (SaaS), Cloud Offerings, Cloud Application Architectures