Cloud computing is quickly defining the computing paradigm in the modern networked age. Users can run their large computations online using cloud services at a fraction of the cost compared to setting their own data centers. Clearly cloud computing offers many advantages, and yet many large organizations including governments, financial sector, and health care sector are reluctant in transition...

Cloud computing is quickly defining the computing paradigm in the modern networked age. Users can run their large computations online using cloud services at a fraction of the cost compared to setting their own data centers. Clearly cloud computing offers many advantages, and yet many large organizations including governments, financial sector, and health care sector are reluctant in transition...

Reverse share tenancy, wherein poorer landlords rent out land to richer tenants on shares, is a common phenomenon. Yet it does not fit existing theoretical models of sharecropping and has never before been modeled in the economics literature. We explain share tenancy contracts using an asset risk model that incorporates Marshallian inefficiency and thereby provides a credible explanation for sh...

Multi-Tenancy is an architectural paradigm that is supposed to allow operators to exploit economies of scale. This is due to the fact that a single instance of MultiTenancy application serves multiple customers at the same time. Thus, operators may utilize resources and facilitate application operations more efficiently. On the other hand, however, a major drawback of Multi-Tenancy is the custo...

The upcoming business model of providing software as a service (SaaS) not only creates new challenges for service providers but also for software engineers. To enable a cost-efficient service management, the hosted application should support multi-tenancy. For implementing multi-tenancy, several options are available, whereas all of them to a certain degree require a reengineering of the applic...

Multi-tenancy is an essential property of Cloud computing. It helps service providers to maximize resource utilization and reduce servicing costs per customer. It is therefore important for key components of the contemporary enterprise environment like the Enterprise Service Bus (ESB) to support and enable multi-tenancy. For this purpose, in this work we investigate the requirements for multi-t...

SaaS (Software as a Service) provides new business opportunities for application providers to serve more customers in a scalable and cost-effective way. SaaS also raises new challenges and one of them is multi-tenancy. Multi-tenancy is the requirement of deploying only one shared application to serve multiple customers (i.e. tenant) instead of deploying one dedicated application for each custom...

Making agreements on how to behave has been shown to be an evolutionarily viable strategy in one-shot social dilemmas. However, in many situations agreements aim to establish long-term mutually beneficial interactions. Our analytical and numerical results reveal for the first time under which conditions revenge, apology and forgiveness can evolve and deal with mistakes within ongoing agreements...