Stefan T. Ruehl

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Software-as-a-Service (SaaS) is a new delivery model, whose basic idea is to provide applications to the customer on demand over the Internet. In contrast to older approaches SaaS promotes multi-tenancy as a tool to exploit economies-of-scale. This means that a single application instance serves multiple customers. However, the flexibility of an application(More)
—Software-as-a-Service (SaaS) is a delivery model whose basic idea is to provide applications to the customer on demand over the Internet. In contrast to similar but older approaches, SaaS promotes multi-tenancy as a tool to exploit economies of scale. This means that a single application instance serves multiple customers. However, a major throwback of(More)
Software-as-a-Service is a delivery model whose basic idea is to provide applications to the customer on demand over the Internet. SaaS thereby promotes multi-tenancy as a tool to exploit economies of scale. This means that a single application instance serves multiple customers. However, a major drawback of SaaS is the customers' hesitation of sharing(More)