Traditional software applications are typically customized before being delivered to a client. This customization was a paid service delivered by software development organisations. With the growing demand of applications delivered with a SaaS model, software development organisations are increasingly responding with the migration of traditional applications to a multi-tenant SaaS deployment mo...

This article aims to study lease and hiring contract in the Iranian-Islamic setting and analyze the asymmetric information problem in these contracts. For doing this, we study the characteristics of lease and hiring contracts in Iran (real world experimental characteristics that recognized in other studies), using library method, then we mathematically model different aspects of asymmetric info...

Replication technology, such as Quorum NRW system, is the most effective technology to improve availability of SaaS. However, the variety of SaaS transaction will result in application unbalance. In this paper, we construct a new Quorum NRW system for multitenant database which is based on the method of sharing database and schema model. It can provide different R and W values for each tenant a...

From sustainability to productivity, agricultural land use issues involve complex multiobjective decision making problems. The Agland Decision Tool is an Excel based decision support system designed to help agricultural property managers make informed production decisions. Using the Agland Decision Tool, managers can build and compare up to five different production alternatives on the basis of...

BACKGROUND Scientists conducting research into household air or dust pollution must decide whether, when, and how to disclose to study participants their individual results. A variety of considerations factor into this decision, but one factor that has not received attention until now is the possibility that study participants' receipt of their results might create legal duties under environmen...

Business software is increasingly moving from a traditional on-premises deployment model to a Software as a Service deployment model. In a Software as a Service deployment model, the possession and ownership of the software application is separated from its use. The software is hosted by a Software as a Service provider, relieving the customer organization from the responsibility for supporting...

Relational database-as-a-service (DaaS) providers need to rely on multi-tenancy and resource sharing among tenants, since statically reserving resources for a tenant is not cost effective. A major consequence of resource sharing is that the performance of one tenant can be adversely affected by resource demands of other co-located tenants. One such resource that is essential for good performanc...

In a service-oriented multi-tenant SaaS application, all tenants share services and user requests of the service change dynamically. In order to provide high-quality web services, we must solve the problem of the load unbalance caused by dynamic user requests’ change. This paper proposes an approach based on hypergraph partition to keep load balance for serviceoriented multi-tenant SaaS applica...

Software-as-a-Service using admission control has been considered as the next generation software delivery model that shares the services among different tenants to improve the utility rate. A major feature of the admission control is that the tenant’s resources are usually shared by the cloud. While the tenant’s enjoy the convenience of resources being obtained from the cloud structure, they f...