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Auflistung nach Autor:in "Urban, Torsten"

1 - 4 von 4
  • Konferenzbeitrag
    Conceptual Methods to Design Sustainable IT Infrastructures – Standardization, Consolidation, and Virtualization
    (EnviroInfo Dessau 2012, Part 2: Open Data and Industrial Ecological Management, 2012) Krüger, Peter; Urban, Torsten; Siegling, André; Zimmermann, Ronny; Arndt, Hans-Knud
    Constructing IT infrastructures as a part of the enterprise architecture is influenced by aspects like customer’s requirements, and scope of technology. Today in discussions of designing new or redesigning existing IT infrastructures you may recognize the aspect sustainability, too. In relation to sustainability the keyword “green IT” is mentioned. First of all, we clear the scientific context and take a closer look at green IT and the sustainability of IT infrastructures. In addition, we show that the conceptual methods standardization, consolidation and virtualization can be assigned to the field of green IT, and that they influence the IT infrastructure and its sustainability. We gave also a practical example with a case study of the SAP University Competence Center Magdeburg's data center. In this case study we observed that from 2003 till today it was possible to reduce the power consumption (- 74%) and increase the performance (+ 60%) by realizing standardization, consolidation and virtualization as well as using new generation of hardware elements, and cooling systems. In conclusion, we point out that it is advisable for designing IT infrastructures to evaluate methods regarding to their benefit for sustainable. We have shown that common methods, documented in literature, can have a share for increasing sustainable IT infrastructures.
  • Konferenzbeitrag
    A new visualization approach for sustainability
    (INFORMATIK 2015, 2015) Mokosch, Matthias; Urban, Torsten; Arndt, Hans-Knud
    Organizations sustainability is increasingly measured by the general public. But does a suitable way always exist to present both the target sustainability as well as the current sustainability in a stakeholder oriented manner? Today especially the management needs a tool, which is efficient and easy to understand to reach a stakeholder oriented sustainability presentation. In our contribution we discuss advantages and disadvantages of existing approaches to visualize sustainability. Moreover, we present our triangular pyramid of sustainability, which is the result of a new threedimensional visualization approach. It solves many problems of existing sustainability visualization approaches. In a nutshell, our contribution presents a visualization approach that enables manager to determine the quality and quantity of sustainability as well as to conduct sustainability comparisons between and within organizations but also between different periods
  • Konferenzbeitrag
    Sustainability of the iPhone
    (Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Mokosch, Matthias; Urban, Torsten; Arndt, Hans-Knud; Hielscher, Tommy; Winsczyk, Gerrit
    In this work, we discuss the sustainability of the iPhone, focused on the stages of the product life cycle. First of all, we give the theoretical background and explain how sustainability is understood in this work and we show that the viewed product life cycle bases on the stages production, usage and disposal. Furthermore, we describe on a technical view our study object, the iPhone in the 5.th generation. Following we look at each stage of the product life cycle and discuss what have a positive or negative influence on the sustainability. We show among other things that Apple reaches economical sustainability by high profit per device. As a result of our work, we come to the conclusion, that even through a lot of good approaches the iPhone is not absolutely sustainable, particularly with regard to ecological and social aspects. Last but not least, we give an outlook for future work.
  • Konferenzbeitrag
    Tablets - Suitable Problem Solvers for Business Cases?
    (EnviroInfo & ICT4S, Adjunct Proceedings, 2015) Mokosch, Matthias; Urban, Torsten; Arndt, Hans-Knud
    Tablets arent a new idea. They were already described in the early science fictions like Isaac Asimovs novel Foundation from 1951 and are commercially available since 1989, e. g. the Grid GridPad 1910. Since Apple released the first iPad in 2010, tablets became favored and are in vogue today. Some experts already proclaim the end of the PC era. However, if tablets substitute PCs for private use, what are about the potential to suit the needs of organizations? In our contribution we consider this question and discuss, whether and in which way tablets are problem solvers. In summary, tablets are potential problem solvers but in which specific way depends on organization needs and business cases as well as the existing system landscape and social aspects.