As a key service model in cloud computing, SaaS applications are becoming increasingly popular. Multi-tenancy is a key characteristics of SaaS applications. Business processes play a key role in SaaS applications because of the composability and reusability of software services. This paper focuses on multi-tenants instance-intensive workflows system, in which workflows have a large number of in...

B software vendors offering, via the cloud, software-as-a-service (SaaS) versions of traditionally on-premises application software, security risks associated with usage become more diversified. This can greatly increase the value associated with the software. In an environment where negative security externalities are present and users make complex consumption and patching decisions, we constr...

Multi-tenancy is one of the most important concepts for any Software as a Service (SaaS) application. Multi-tenant SaaS application serves a large number of tenants with one single application instance. Complex SaaS application that serves significant number of tenants could have a huge number of customizations with complicated relationships, which increases the customization complexity and red...

We use audited financial statements to examine claims that service-oriented architecture (SOA) leads to higher profits relative to traditional software delivery models. Specifically, we examine vendors that rely on the Software-as-a-Service (SaaS) pricing model, and compare their performance to other firms that still use the traditional perpetual license model. We find that, relative to their p...

To achieve the needs of business collaboration between business-related multi-core enterprise clusters based on Software as a Service (SaaS) platform, a multi-core management mechanism based on single-core collaboration relationship and business-related multi-core collaboration relationships were erected for the modern industrial system. On base of implicit authority of business functions, a co...

Virtual Learning Environments (VLEs) such as Moodle or Sakai are now commonplace in many educational settings, but the limited set of built-in tools (e.g. chats or forums) is often mentioned as a drawback. While successful solutions to integrate Software as a Service (SaaS) tools are reported in the literature (e.g. IMS Basic LTI and GLUE), there are other non-SaaS tools with potential for educ...

The Software-as-a-Service (SaaS) product model provides clients to outsource software application processing requirements. Customer satisfaction is an important problem facing SaaS firms. Marketing theory suggests that customer satisfaction is affected by perceived value, but this relationship has not been examined in the SaaS context. This study argues for the mediating role of perceived value...

Over and above the IaaS bene ts described in the preceding are those of Software as a Service (SaaS). In the SaaS model, a vendor takes responsibility for not only infrastructure, but also for all of the processes required to manage an entire application solution (patches, upgrades, backups, database management, systems tuning, performance management, etc.). Because SaaS vendors manage many cus...

Cloud service providers praise Software-as-a-Service (SaaS) as very attractive for small and medium enterprises (SMEs). Yet, little research has been done on the SMEs’ perspectives on this matter. This paper presents the results of a survey conducted among German enterprises that clarifies their views of SaaS. Starting with the actual IT situation, we show the prerequisites as well as the reaso...

Recently, the Software-as-a-Service (SaaS) model has been increasingly supported, becoming a major part of the new emerging cloud computing paradigms. Although SaaS exists in different forms, supporting and providing SaaS developed based Web services has attracted a large effort from industries and academics because this form of SaaS allows software to be easily composed and integrated to offer...