Cloud computing promotes economies of scale by sharing software and hardware resources across multiple tenants. To date, there has been relatively little research on how MDE can best support multi-tenant cloud applications, where there is a need to separate the logic and data of multiple tenants. In this position paper, we sketch out five key research opportunities for applying MDE to multi-ten...

An old house is recovered with precise operations that preserve the original volume and external appearance carries affective memory of place. Inside, white homogenizes previous construction as opposed to concrete has been left exposed in new elements. The massive masonry wall contrasts diaphanous frames. cylindrical staircase, whose finish on upper floor sculpturally assembles kitchen counter,...

This article investigates how anchor firms sustain high tech clusters rejuvenation by means of technological pre-adaptation. Based on evidences are drawn from the comparison of the evolution of two nano-electronics clusters, i.e., Grenoble (France) and Catania (Italy) clusters which are sharing the same anchor tenant firm STMicroelectronics. Cluster rejuvenation comes from pre-adaptation of act...

Currently, collaboration is a major challenge in adopting cloud Infrastructure-as-a-Service (IaaS). Enterprise work-flow intrinsically mandates collaboration across its tenant boundaries as well as with associated organizations’ tenants in the cloud. In this paper, we investigate a Circle-of-Trust approach where tenants establish trust within a circle of tenants for the purpose of collaboration...

The Section 8 Housing Choice Voucher Program (“Section 8”) is an important effort to make quality housing accessible to low-income families. Although the federal program is voluntary, several states, cities, and local communities have responded to the problem of landlord rejection of Section 8 tenants with laws prohibiting discrimination based on a prospective tenant’s source-of-income. Mandato...

The probability of encountering a particular syntactic configuration, given a particular verb (i.e. “verb bias” or “subcategorization preference”) affects language comprehension (Trueswell, Tanenhaus, & Kello, 1993). A recent study (Gahl & Garnsey 2004) of sentences with temporary direct object / sentential complement ambiguities shows that such probabilities also affect language production, sp...

In the service-centric Internet, multiple virtual services (tenants) are overlayed on top of the same infrastructure (both in wide-area networks and in datacenter networks). We propose conserving energy, in this setting, by virtualizing network power consumed by each tenant, feeding back that information to the tenant, and incentivizing the tenant to conserve energy by making their bill proport...

Energy accounting plays a crucial role in optimizing data center energy efficiency. Nonetheless, in a multi-tenant data center, it is challenging to fairly account for nonIT energy on an individual tenant basis, because each non-IT system (e.g., power supply and cooling) is shared by multiple tenants and only the system-level non-IT energy consumption can be measured. Existing policies, e.g., p...