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Cloud Computing

With Cloud Computing a paradigm shift to standardization and service orientation in the information and communication industry emerges and marks the industrialization of IT. Cloud Computing allows companies to rent IT services on demand to support their business processes. As a new part of IT sourcing, the effort of operation and maintenance is completely managed by the provider. The customer only rents the service in a pay-per-use manner like a commodity similar to the energy or water market. Considering the extensive usage of on demand services, mobile applications and interactive elements, transactions and workloads will rise significantly and require scalable IT structures. This growing acceptance will result in an increasing demand for IT resources. At this point the Cloud Computing model is essential. It makes on demand network access to a shared pool of configurable computing resources possible, that can be rapidly provisioned and released with minimal management effort or service provider interaction. The resources (e.g. networks, servers, storage, applications and services) are offered in a scalable way via the Internet without the need for any long-term capital expenditures and specific IT knowledge on the customer side. It is possible to obtain complete software applications or the underlying IT infrastructure in the form of virtual machine images. Basically Cloud Computing is composed of the characteristics above described and consists of three levels, software as a service (SaaS), platform as a service (PaaS) and infrastructure as a service (IaaS).

The research in the area of sustainable information management is focused on the following areas:

  • Cloud Computing management concepts
  • Cloud business models and use cases
  • Competitive advantage based on Cloud Computing
  • Strategic Cloud Computing alignment
  • Development of scorecards and maturity models for Cloud Computing
  • Cloud provider selection
   

Cloud Provider Selection

Lupe

Adopting new technologies, such as Cloud Computing, is a complex phenomenon with high ambiguity and a variety of opportunities and challenges. For the adoption of Cloud Computing either factors referring to the client side or to the provider side can be relevant. The client side factors describe capabilities, processes and resources of the customer that are essential for an adoption. These can be specific IT capabilities, the organizational readiness or the customer attitude towards Cloud Computing. The decision process of adopting Cloud Computing is closely linked with the general consideration (Make-or-Buy decision) whether information and communication technology and services should be kept in the enterprise or be sourced from external providers. This decision process focuses on factors on the client side and represents the first Cloud adoption step. Subsequently, an appropriate provider has to be selected based on its capabilities (second adoption step). For instance, these factors can be the provider’s reputation, its promised service level agreements or the offered support (provider side factors). 

The chair of Information and Communication Management (IKM) developed a framework to support the provider selection process (See existing publication). This framework has been evaluated by practicioners to ensure applicability and relevance. For further evaluation and feedback companies are welcome to participate. Please contact Jonas Repschläger for further questions.

Publications

2012

Repschläger, J., Wind, S., Zarnekow, R. and Turowski, K. (2012). A Reference Guide to Cloud Computing Dimensions: Infrastructure as a Service Classification Framework. 45th Hawaii International Conference on System Sciences (HICSS-45)


2011

Repschläger, J., Erek, K., Wilkens, M., Pannicke, D. and Zarnekow, R. (2011). Konzeption einer Community Cloud für eine ressourceneffiziente IT-Leistungserstellung. Informatik 2011 - Workshop Informatik und Nachhaltigkeitsmanagement


Repschläger, J., Wind, S. and Zarnekow, R. (2011). Klassifikationsrahmen für die Anbieterauswahl in der Cloud. Informatik 2011 - IOS 2.0 - Neue Aspekte der zwischenbetrieblichen Integration durch Enterprise 2.0


Repschläger, J., Wind, S., Zarnekow, R. and Turowski, K. (2011). Developing a Cloud Provider Selection Model. Enterprise Modelling and Information Systems Architectures - EMISA 2011


Repschläger, J. and Zarnekow, R. (2011). IT-Outsourcing und Cloud-Sourcing – Gemeinsamkeiten und Unterschiede. ERP Management



2010

Zarnekow, R. and Repschläger, J. (2010). Doppelter Gewinn – Die Bedeutung des Cloud Computing für den öffentlichen Sektor. Vitako Aktuell – Zeitschrift der Bundes-Arbeitsgemeinschaft der kommunalen IT-Dienstleister e.V., 6-8.


Repschläger, J., Pannicke, D. and Zarnekow, R. (2010). Cloud Computing: Definitionen, Geschäftsmodelle und Entwicklungspotenziale. HMD - Theorie und Praxis der Wirtschaftsinformatik, ?.


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Contact

Dr. Jonas Repschläger
sec. H93
Room H 9163
Strasse des 17. Juni 135
10623 Berlin/Germany
+49-(0)30-31478706
+49-(0)30-31478701

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