Market analyses show that some cloud providers are significantly more successful than others. The research on the success-driving business model characteristics of cloud providers and thus, the reasons for this performance discrepancy is, however, still limited. Whereas cloud business models have mostly been examined comprehensively, independently from the distinctly different cloud ecosystem roles, this paper takes a perspective shift from an overall towards a selective, role-specific and thereby ecosystemic perspective on cloud business models. The goal of this paper is specifically to identify the success-driving business model characteristics of the so far widely neglected cloud ecosystem's core roles, IaaS and PaaS provider, by conducting an exploratory multiple-case study. 21 expert interviews with representatives from 17 cloud providers serve as central data collection instrument. The result is a catalogue of generic as well as cloud-specific, subdivided into role-overarching and role-specific, business model characteristics. This catalogue supports cloud providers in the initial design, comparison and revision of their business models. Researchers obtain a promising starting and reference point for future analysis of business models of various cloud ecosystem roles.
KEYWORDSInfrastructure as a Service (IaaS), Platform as a Service (PaaS), Success-Driving Business Model Characteristics, Cloud Computing Ecosystem, Exploratory Multiple-Case Study.The rest of this paper is organized as follows: Section two contains the related work regarding cloud computing, business models, business ecosystems and success factors. In the third section, the conducted case study research approach is depicted in detail. The identified success-driving business model characteristics are listed and described separately according to the various business model components in section four. In section five, the results are discussed and several unexpected aspects concerning the current situation and possible future developments within the cloud ecosystem are presented. Section six provides a summary, limitations, contributions for theory and practice and a prospect on future research.
RELATED WORKCloud computing is a relatively new IT operations model, which has radically transformed the way IT resources are produced, provided and used [21]. This is the reason why numerous scholars (e.g., [10,22]) consider cloud computing as a co-evolution of computing technology and business models. The main characteristics of cloud services, including on-demand self-service, broad network access, resource pooling, rapid elasticity and measured service, distinguish it from its traditional counterpart, the on-premise IT [23]. Cloud services can be delivered via four different deployment models: public, private, hybrid and community. These deployment models particularly differ in their degree of operational isolation, the access control to a specific cloud service and the physical location of the underlying hardware servers [24].