@article{StantchevDzombetaBrandis2013, author = {Stantchev, Vladimir and Dzombeta, Srdan and Brandis, Knud}, title = {IT Compliance Management in the Field of Cloud Computing: competence Management Approach supporting Continuing Engineering Education}, series = {International Journal of Engineering Education}, volume = {29}, journal = {International Journal of Engineering Education}, pages = {Keine Angabe - No details -- Keine Angabe - No details}, year = {2013}, abstract = {Keine Angabe - No details}, language = {en} } @misc{Stantchev2013, author = {Stantchev, Vladimir}, title = {Minitrack Chair Service Directories for SaaS}, year = {2013}, abstract = {Keine Angabe No details}, language = {en} } @inproceedings{TammZiekow2004, author = {Tamm, Gerrit and Ziekow, Holger}, title = {The utility of learning management systems for institutes of higher education}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-10503}, pages = {12}, year = {2004}, abstract = {Nowadays efficiency and quality of education is controversially discussed by politicians as well as by scientists. A number of important studies point out the necessity of improvements in the field of education. Using learning management systems might be a chance for institutes of higher education to face the demands of today. In this paper we evaluate the need of learning management systems for higher education organisations. A value chain for organisations of higher education has been developed to categorize and to describe generic task. By conducting an empirical analysis through the academic task carriers (professors, students and administration department) we could identify the need for supporting each task by learning management system. The paper aims to describe a generic evaluation method for learning management systems. A comprehensive description of the evaluation method and results of the empirical analysis are presented in detail.}, language = {en} } @inproceedings{LutzGlasbergBritzeetal., author = {Lutz, Michael and Glasberg, Ronald and Britze, Nils and Oberressl, Leo}, title = {Integration Done Right : the Crucial Role of Human Resources in Post-Merger Integrations}, abstract = {This is a joint analysis by SRH University Berlin and Michael Lutz, Project Leader at The Boston Consulting Group, of the crucial role of human resources (HR) in the integration phase of mergers and acquisitions (M\&A), contributing a new perspective to the classic approach with its heavy bias towards quantitative measures. The conducted analysis of literature research as well as the evaluation of experiences by various experts aims to provide further understanding of the diverse reasons for the outcome of (un)sustainable M\&A activities. Research shows that most M\&A activities fail in the long run because the classic approach during the three phases (1) pre-merger planning, (2) the merger itself, and (3) the post-merger-integration phase focuses on quantitative issues and insufficiently incorporates HR and cultural topics. HR is integral for every M\&A, as well as for the restructuring and change projects that often accompany mergers. Therefore, failing to adequately include employees in the M\&A phases is one of the gravest risks while conducting a merger. This article describes in detail the challenges faced when conducting an M\&A with regard to HR implementation and presents advise and tools for how to successfully mitigate an M\&A failure due to insufficient HR implementation.}, language = {en} } @article{HaufeDzombetaBrandisetal., author = {Haufe, Knut and Dzombeta, Srdan and Brandis, Knud and Stantchev, Vladimir and Colomo-Palacios, Ricardo}, title = {Improving Transparency and Efficiency in IT Security Management Resourcing}, series = {IT Professional}, volume = {20}, journal = {IT Professional}, number = {01}, issn = {1520-9202}, pages = {53 -- 62}, abstract = {The authors propose a resource management process for information security management systems to more transparently plan and assign costs of controls. The process relies on and is compliant with international standards of the ISO/IEC 27000 family and can be implemented by all organizations regardless of type, size, or nature.}, language = {en} } @inproceedings{GhulammMuhammadSalimiJaedickeetal.2015, author = {Ghulamm Muhammad, Sarfaraz and Salimi, Meysam and Jaedicke, Corvin and Stantchev, Vladimir and Prieto-Gonz{\´a}lez, Lisardo and Tamm, Gerrit}, title = {Cloud Computing: an Enabler in the Modern Labour Market}, series = {Labour in the 21st Century}, booktitle = {Labour in the 21st Century}, publisher = {Cambridge Scholars Publishing}, address = {Newcastle upon Tyne}, isbn = {978-1-4438-1707-3}, pages = {66 -- 77}, year = {2015}, abstract = {Modern day labour market is influenced by different factors, mainly by ambitious investment in latest machinery, office automation software systems and computer-based solutions. Utilization of computer has benefited the employment market on vast scale, depending on the requirements of a particular business, its size and financial capabilities, and the intention to use. Furthermore, unparalleled technologies, such as cloud computing and smart technologies has directly affected demand for modern day labour. Nowadays, the utility model of cloud computing made it more popular and a favourite choice for the institutes to free up their internal resources and also reduce the number of administrative staff needed to maintain it. With certain kinds of offerings, institutes operating at small scales are also benefitting, which was almost impossible only a decade ago. Given that, the successful utilization of cloud computing remains a topic of extra ordinary importance among the scholars, experts, interested groups and several other institutions, and is defined in different ways according to their particular understanding and usage. But cloud is best defined by National institutes of standard and technology.}, language = {en} } @article{GarciaGuzmanLandaetaOlivoColomoPalaciosetal.2015, author = {Garc{\´i}a Guzm{\´a}n, Javier and Landaeta Olivo, Jos{\´e} Francisco and Colomo-Palacios, Ricardo and Stantchev, Vladimir}, title = {IT Innovation Strategy: Managing the implementation communication and its generated knowledge through the use of an ICT Tool}, series = {Journal of Knowledge Management}, volume = {20}, journal = {Journal of Knowledge Management}, number = {3}, publisher = {Emerald}, address = {Bingley}, pages = {512 -- 533}, year = {2015}, abstract = {Purpose Without effective implementation, no information technology (IT) strategy can succeed. There has been much re-search into IT planning, but few studies have developed one of the most important phases of IT strategy: IT Implementation. IT implementation can be improved at information and communication technology (ICT) organizations through the use of organization learning models (OLM) and the implementation of ICT tools. This paper has two purposes define an OLM framework that determines the best practices to increase knowledge at individual, group and/organizational levels, and define and implement an ICT tool to facilitate the integration and institutionalization of the OLM. The ICT tool is based on the technology roadmapping technique that allows an organization to manage at an executive level what, when and how the IT strategy is going to be implemented. Design/methodology/approach This paper is based on a case study performed at an ICT organization that provides ICT services to financial institutions. The study was carried out in 2014. It analyzed over 24,000 projects, which translated into an equivalent of more than 18 million man-hours. The proposal was assessed at a very large ICT organization. Findings This paper proposes a framework called SPIDER to effectively implement OLMs based on Big Data management principles for monitoring and reporting current status of IT innovation strategies. These kinds of approaches contribute to solve the problems identified in the state-of-the-art regarding the communication and monitoring the implementation status of IT innovation strategies. During this research work, several factors that are essential to implement these kinds of approaches in large banking organizations were identified: effort required to elaborate the monitoring and reporting activities; easiness to understand the reported information; detailed planning of the implementation program; and focus on communication efficiency. Originality/value This paper determined the best practices to manage knowledge generated during the implementation of an IT strategy. Additionally, this paper defined and implemented an ICT tool to properly communicate and monitor the implementation of an IT innovation strategy, based on technological roadmap techniques.}, language = {en} } @article{PrietoGonzalezTammStantchev2015, author = {Prieto-Gonz{\´a}lez, Lisardo and Tamm, Gerrit and Stantchev, Vladimir}, title = {Governance of cloud computing: semantic aspects and cloud service brokers}, series = {International Journal of Web and Grid Services}, volume = {11}, journal = {International Journal of Web and Grid Services}, number = {4}, pages = {377 -- 389}, year = {2015}, abstract = {This paper provides an overview of cloud governance aspects based on a representative survey of trends in the perception, assessment and adoption of cloud computing within the enterprise. The survey was conducted through a twofold research approach and combined a meta-study of existing and published empirical studies with an own empirical study within a representative group of European and international enterprises. We consider governance through the prism of adoption drivers and focus on the role of cloud brokers and cloud marketplaces more specifically, as well as the inclusion of semantic based strategies oriented to enhance the quality of service offered by cloud service brokers.}, language = {en} } @article{TernesApp2015, author = {Tern{\`e}s, Anabel and App, Joachim}, title = {What Today's World Demands from Us}, series = {Arabian Journal of Business and Management Review}, volume = {6}, journal = {Arabian Journal of Business and Management Review}, number = {2}, issn = {2223-5833}, pages = {1 -- 1}, year = {2015}, abstract = {The world is spinning faster than ever before. What the Polish sociologist Zygmunt Bauman once called "fluid modernity" has become the most relevant characteristic of our restless times. It seems as if absolutely nothing is of continuity: neither basic values nor once powerful institutions can withdraw themselves from this engrossing maelstrom of post-modernism. The same applies to physical spaces and knowledge itself, leaving us with a most uneasy feeling caused by the dissolving blur of truth. What we could believe in yesterday is about to fall into the clutches of liquidation. The whole world is subject to a completely uncontrollable and inexorable process of delimitation: Bigger, faster, higher, louder, are far more the prevailing keywords of the early 21st century, leaving us all behind in a constant fear about ourselves...}, language = {en} } @article{TowersTernes2015, author = {Towers, Ian and Tern{\`e}s, Anabel}, title = {Organisational Change Agents and (Un)wanted and (Un)intended Outcomes}, series = {Arabian Journal of Business and Management Review}, volume = {5}, journal = {Arabian Journal of Business and Management Review}, issn = {2223-5833}, pages = {1 -- 5}, year = {2015}, abstract = {This paper shows how the behaviour of a single change agent affected outcomes. The mechanisms were demonstrated through which actions contributed to the non-achievement of planned outcomes and to the appearance of unintended, unwanted and unpredicted outcomes. The investigating was carried to establish if there were differences between good and bad change agents and also to investigate a change in an organisation with offices in several locations and analyse what happens when an organisational level change is implemented at each of the sites. By doing so we will be able to make comparisons between several change agents in a similar situation. Comparison change processes in several companies to determine the role played by structure in change management compares to the role played by agency.}, language = {en} } @book{WernerSauerwein2019, author = {Werner, Henning and Sauerwein, Johannes}, title = {Studie zum deutschen Restrukturierungsmarkt 2019}, volume = {2019}, publisher = {Heidelberger Hochschulverlag}, address = {Heidelberg}, isbn = {978-3-942648-34-9}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-11745}, publisher = {SRH Hochschule Heidelberg}, pages = {32}, year = {2019}, abstract = {Im Rahmen der »Studie zum deutschen Restrukturierungsmarkt 2019« wurden von August bis September 2018 die Restrukturierungsabteilungen der zehn gr{\"o}ßten Banken aus dem »Corporate Bereich« sowie die f{\"u}nf gr{\"o}ßten Warenkreditversicherer zu diversen Themenbereichen bezogen auf den Restrukturierungsmarkt befragt. Der Restrukturierungsbedarf 2019 hat sich gegen{\"u}ber 2018 {\"u}berwiegend als konstant bis leicht steigend ergeben. Potenzielle Restrukturierungstreiber sind vor allem die negative globale Konjunkturentwicklung, die US-Handelspolitik und technologische Entwicklungen wie Digitalisierung. Im Rahmen der Studie wurden dar{\"u}ber hinaus zahlreiche weitere Erkenntnisse gewonnen. So wird z. B. in Sanierungskonzepten dem strategischen Leitbild eine immer gr{\"o}ßere Bedeutung beigemessen und die Digitalisierung wird aus Sicht der Finanzierer dazu f{\"u}hren, dass viele Unternehmen ihre Gesch{\"a}ftsmodelle grundlegend anpassen m{\"u}ssen. Auch konnten Erkenntnisse zur Positionierung der Restrukturierungsgesellschaften f{\"u}r Krisenf{\"a}lle mit mehr als 100 Millionen Euro Umsatz in Abh{\"a}ngigkeit der Kriterien Krisenphase, Unternehmensgr{\"o}ße, geografische Orientierung, Branchen und T{\"a}tigkeitsfelder gewonnen werden.}, language = {de} } @book{Kuespert2018, author = {K{\"u}spert, Fabian}, title = {Digitale Transformation - ein Schlaglicht auf Chancen und Herausforderungen}, editor = {Schuster, Anke and Klo{\´e}, Ursula}, publisher = {Heidelberger Hochschulverlag}, address = {Heidelberg}, isbn = {978-3-942648-23-3}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-11763}, publisher = {SRH Hochschule Heidelberg}, pages = {52}, year = {2018}, abstract = {Unter »Digitale Transformation« kann jegliche digital-technologische Innovation in Unternehmen mit dem Ziel der Optimierung von Produkten, Dienstleistungen, Prozessen sowie dem Entwickeln neuer Gesch{\"a}ftsmodelle verstanden werden. In sechs Essays haben Studierende der SRH Hochschule Heidelberg einzelne Branchen ausgew{\"a}hlt spezifische Fragestellungen formulieren. Dazu wurden jeweils pers{\"o}nliche Interviews mit Experten aus den unterschiedlichen Branchen gef{\"u}hrt. Die Themen in diesem E-Paper spiegeln die Breite des Themas: Die in Zusammenhang mit Digitaler Transformation h{\"a}ufig erw{\"a}hnten Begriffe wie Industrie 4.0, »Internet of Things« (IoT), Cloudcomputing, digitale {\"O}kosysteme und Big Data bzw. Smart Data Analytics stecken die Bandbreite der Interpretation ab, die von der Modifikationsf{\"a}higkeit von Informationssystemen bis hin zur intelligenten Datenerhebung und -auswertung reicht. Damit ist die Auseinandersetzung mit dem »Internet der Dinge« ebenso abgedeckt wie die mit dem »Internet der Dienste und Daten« - zwei wichtigen konvergenten Technologieentwicklungen.}, language = {de} } @book{Simsek2019, author = {Simsek, Alev}, title = {New Work - Wie die Digitalisierung die Arbeitswelt heute und morgen ver{\"a}ndert}, editor = {Schuster, Anke and Klo{\´e}, Ursula}, publisher = {Heidelberger Hochschulverlag}, address = {Heidelberg}, isbn = {978-3-942648-32-5}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-11785}, publisher = {SRH Hochschule Heidelberg}, pages = {53}, year = {2019}, abstract = {Das vorliegende E-Paper »New Work« ist die dritte Publikation zur angewandten Forschung im Studiengang Wirtschaftsinformatik der SRH Hochschule Heidelberg. Alle drei E-Paper setzen sich mit dem Megatrend »Digitale Transformation« im weitesten Sinne auseinander. In der aktuellen Publikation Paper ver{\"o}ffentlichen wir Essays von Studierenden, die sich dem Thema »New Work« auf ganz unterschiedliche Weise n{\"a}hern, so beispielsweise zur Organisation von Arbeit, zur Arbeitsplatzgestaltung oder zu neuen, interessanten Arbeitsfeldern im Kontext der Digitalisierung.}, language = {de} } @book{SchusterKloe2017, author = {Schuster, Anke and Klo{\´e}, Ursula}, title = {Big Data im Mittelstand der Metropolregion Rhein-Neckar}, volume = {2017}, publisher = {Heidelberger Hochschulverlag}, address = {Heidelberg}, isbn = {978-3-942648-18-9}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-11695}, publisher = {SRH Hochschule Heidelberg}, pages = {30}, year = {2017}, abstract = {Big Data h{\"a}lt mit großer Geschwindigkeit Einzug in allen Branchen. Unternehmen jeder Gr{\"o}ße m{\"u}ssen sich dieser digitalen Herausforderung stellen, es gilt, die Datenflut zu bew{\"a}ltigen, zu bewerten und f{\"u}r die jeweiligen Zwecke zielf{\"u}hrend einzusetzen. Riesige Datenmengen werden zum wichtigen Wettbewerbsfaktor. Wie zahlreiche Studien zeigen,* gibt es mittelst{\"a}ndische Unternehmen, die sich ganz fr{\"u}h der Herausforderung gestellt haben und Big Data in ihre Gesch{\"a}ftsprozesse integriert haben. Gleichwohl reagierten viele im Mittelstand bisher eher verhalten und abwartend auf Big Data. Wie gut ist der Mittelstand der Metropolregion Rhein-Neckar bei Big Data aufgestellt? Wo liegen die Chancen und wo die Barrieren? Welche Mitarbeiter* innenkompetenzen braucht der Mittelstand in der Metropolregion? Welche Unterst{\"u}tzung erwartet der Mittelstand in der Metropolregion beim Thema Big Data? Im Studiengang Wirtschaftsinformatik an der SRH Hochschule Heidelberg unter Leitung von Prof. Anke Schuster und der Forschungs- und Beratungsagentur 70EINS, Heidelberg, unter Leitung von Frau Klo{\´e} wurde im Rahmen des Moduls »angewandte Forschung« von Studierenden im 6. Semester eine Studie im II. Quartal 2016 durchgef{\"u}hrt, die Antworten auf diese Fragen gibt.}, language = {de} } @article{Ternes2017, author = {Tern{\`e}s, Anabel}, title = {Auf dem Weg zum verkaufsaktiven Innendienst}, series = {Sales Management Review}, volume = {2017}, journal = {Sales Management Review}, number = {4}, pages = {28 -- 34}, year = {2017}, abstract = {Innen- und Außendienst k{\"o}nnen nicht ohne einander, denn der Erfolg des einen h{\"a}ngt von der Arbeit des anderen ab. Und doch ziehen sie oft nicht an einem Strang. Angesichts der digitalen Transformation werden jedoch die Karten neu gemischt, innovative Prozesse qualifizieren den Innendienst zum Dreh- und Angelpunkt im Vertrieb.}, language = {de} } @incollection{TernesApp, author = {Tern{\`e}s, Anabel and App, Joachim}, title = {E-Business and CSR: An Unbridgeable Tension?}, series = {Advanced E-Business Research: International Trends \& Issues}, booktitle = {Advanced E-Business Research: International Trends \& Issues}, editor = {B{\"o}hm, Stephan and Quint, Werner and Winzer, Peter}, publisher = {Peter Lang GmbH}, address = {Frankfurt a.M.}, publisher = {SRH Berlin University of Applied Sciences}, pages = {173 -- 186}, abstract = {While many stationary dealers have already adapted to the growing requirements of customers with respect to Corporate Social Responsibility (CSR), many e-business companies have not yet made this pioneering position shift. However, a sustainable harmonization of e-commerce platforms to the needs of green customers1 is an indispensability to survive for many online merchants in the competitive market in the future. Even today, many of the critical customers of Generation Y face an almost insoluble dilemma. Although they want to benefit from the numerous advantages of online trading, at the same time they also want to act in accordance with their personal values and morals. The resulting tension results in the last resort, either in a purchase, which for reflecting customers, "does not feel good" or in making the decision not to purchase due to the internal discrepancy. The object of the online businesses is, therefore, to largely minimize or eliminate the pressure in order to appeal to those customers who expect the social and environmental responsibilities from online retailers. But who exactly are the customers? How can this balancing act between e-commerce on the one hand and CSR on the other side be mastered?}, language = {en} } @incollection{Ternes, author = {Tern{\`e}s, Anabel}, title = {Money 4.0: How will Digitalization Affect Our Use and Relationship to Money?}, series = {The Future of Money. How Gold will Revolutionize our Method of Payments}, booktitle = {The Future of Money. How Gold will Revolutionize our Method of Payments}, editor = {Seiz, Harald}, publisher = {FinanzBuch}, address = {M{\"u}nchen}, isbn = {978-3-95972-082-3}, publisher = {SRH Berlin University of Applied Sciences}, pages = {176 -- 193}, abstract = {Keine Angabe - no details}, language = {en} } @incollection{Towers, author = {Towers, Ian}, title = {England}, series = {Interkulturelle Kommunikation}, booktitle = {Interkulturelle Kommunikation}, publisher = {Springer Gabler}, address = {Wiesbaden}, publisher = {SRH Berlin University of Applied Sciences}, pages = {55 -- 63}, abstract = {England und Deutschland haben vieles im wirtschaftlichen Sinne gemeinsam. Exporte und Importe in Milliardenh{\"o}he fließen in beide Richtungen, und deutsche Unternehmen investieren Milliarden in England. Die Kulturen der beiden L{\"a}nder sind sich aber nicht sonderlich {\"a}hnlich. F{\"u}r deutsche Manager und Arbeitnehmer ist es wichtig zu wissen, wie man mit Engl{\"a}ndern am besten kommuniziert. Diese Kapitel zeigt mit einer Fallstudie, dass es unerl{\"a}sslich ist, zu wissen, wie und wor{\"u}ber man mit Engl{\"a}ndern sprechen sollte.}, language = {de} } @incollection{TowersPeppler, author = {Towers, Ian and Peppler, Alexander}, title = {Geert Hofstede und die Dimensionen einer Kultur}, series = {Interkulturelle Kommunikation}, booktitle = {Interkulturelle Kommunikation}, publisher = {Springer Gabler}, address = {Wiesbaden}, publisher = {SRH Berlin University of Applied Sciences}, pages = {15 -- 20}, abstract = {Gert Hofstede ist einer der f{\"u}hrenden Forscher auf dem Gebiet der Kultur. Er war einer der ersten, der untersucht hat, wie die eigene Kultur Verhaltensweisen und Denkmuster am Arbeitsplatz beeinflusst. Er sammelte und analysierte Daten von {\"u}ber 100.000 Einzelpersonen aus 40 L{\"a}ndern und entwickelte daraus ein Modell, mit dem man Kulturen analysieren kann. In diesem Kapitel wird das Modell erl{\"a}utert und seine Relevanz f{\"u}r Manager, die international t{\"a}tig sind, aufgezeigt.}, language = {de} } @techreport{Wulf2007, type = {Working Paper}, author = {Wulf, Alexander J.}, title = {A Comparative Approach to the Protection of Fashion Innovations}, series = {UC Berkeley Recent Work}, journal = {UC Berkeley Recent Work}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-303}, pages = {1 -- 25}, year = {2007}, abstract = {This paper determines the relevance of industrial property rights to the development of innovations in the fashion industry. It examines how the level of innovation can remain high despite a free exchange of intellectual property - fashion designs - within the industry: The importance of innovation for a fashion business in the industry is determined by the choice of it's competitive strategy. That is, either to be an innovator who creates fashion innovations or to be an imitator who adopts them once they have proven their ability to prevail in the market. The success of innovators depends largely on their ability to react to fashion trends, reinforced by the social role of fashion products and to the extent of their potential to confer status on the owner. Thus the duration of a temporary monopoly gained by an innovation is limited not only by the market entrance of imitators - a period of time that can be prolonged by making use of industrial property rights protection - but also by the constant changes in fashion, a process barely affected by the utilization of intellectual property rights protection. A monopoly maintained by using intellectual property rights might very well not extend the product life cycle beyond the limits posed by the shifting changes of fashion; moreover, an extended life cycle maintained in these circumstances could seriously limit the innovators agility in satisfying consumer demand in line with fashion trends and provoke an inappropriate allocation of resources to developing unfashionable innovations, resulting in a much greater risk of product failure.}, language = {en} } @inproceedings{BrueningZapotoczkyIbachetal.2007, author = {Br{\"u}ning, Stefan and Zapotoczky, Johannes and Ibach, Peter and Stantchev, Vladimir}, title = {Cooperative Positioning with MagicMap}, series = {Workshop on Positioning, Navigation and Communication 2007 (WPNC'07)}, booktitle = {Workshop on Positioning, Navigation and Communication 2007 (WPNC'07)}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-695}, pages = {6}, year = {2007}, abstract = {We present MagicMap, a cooperative, hybrid positioning system developed at the Humboldt-University in Berlin. While most other positioning systems are limited to specific scenarios and technologies our system provides means to incorporate any available wireless networking technology. Currently, MagicMap supports WLAN, RFID, and ZigBee as wireless technologies for positioning and Linux, Windows, and Windows CE as platforms. Position calculation and exchange is based on a cooperative approach allowing an open internet community to share the required data.}, language = {en} } @inproceedings{PriceTammStantchev2012, author = {Price, Michael and Tamm, Gerrit and Stantchev, Vladimir}, title = {SaaS Marketplaces - visions from theory and experience from practice}, series = {Proceedings of the 19th Biennial Conference of the International Telecommunications Society (ITS2012), Bangkok}, booktitle = {Proceedings of the 19th Biennial Conference of the International Telecommunications Society (ITS2012), Bangkok}, pages = {24}, year = {2012}, abstract = {Cloud computing, especially Software-as-a-Service (SaaS), changes the IT processes of companies for application deployment, access, usage, maintenance, governance and management. In an age of Bring-Your-Own-Device, small businesses through to globally operating companies increasingly support their employees and customers with SaaS-applications that allow access to internal and external business information. Whether employees are in the office, at a client facility, at home or on the road, they need fast, easy access to business applications with any type of device. SaaS offers companies an interesting alternative to classical on-premise IT solutions. Cloud computing provides innovative applications, high connectivity and performance, cost reduction, flexibility and fast time to market with a minimum of effort. Cloud computing is a special form of outsourcing that has its roots in the fifties. Ten years ago similar concepts to cloud computing e.g. Application Service Providing (ASP) appeared and failed. But it seems that the willingness to use cloud computing is now much higher and the cost pressure effects of the financial crisis also motivate decision makers in companies to focus on cloud computing. This contribution presents the results of actual scientific literature investigations alongside interviews with owners of Software-as-a-Service Marketplaces. It describes several types of SaaS marketplaces using different business models to bring together customers and providers. It shows that SaaS marketplaces are two-sided and demonstrates how platforms are emerging that bundle features into significant value propositions for both sides. This work is relevant to firms who seek business solution recommendations beyond the focus of their on-premise-focussed advisors. It is also relevant for owners and potential owners of SaaS marketplaces and SaaS providers exploring alternatives in their distribution mix.}, language = {en} } @inproceedings{StantchevTamm2010, author = {Stantchev, Vladimir and Tamm, Gerrit}, title = {Towards Ambient Intelligence and the Internet of Services in Healthcare}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-727}, pages = {6}, year = {2010}, abstract = {The emergence of the Internet of Services and the Internet of Devices opens new possibilities for societal computung scenarios. Ambient Intelligence (AmI) is a vision of an environment that puts the needs of the user in the center of the technological design process. An AmI environment consists of ubiquitous distributed devices such as sensors, displays, data memories which are embedded in everyday objects like walls, clothes, tables or the pavement. These devices are interconnected and seamlessly deliver applications and services to the user. AmI emphasizes the intelligence of the environments interfaces and the intelligence that can be achieved by correlating context information from different data sources. In this work we present an approach to transfer the AmI vision to the public services sector using the paradigm of service orientation and Cloud Computing. Based on scenarios in the healthcare sector the benefits and challenges of such transfer are presented.}, language = {en} } @inproceedings{Stantchev2008, author = {Stantchev, Vladimir}, title = {Service-based Systems in Clinical Environments}, series = {Information Service Design Symposium 2008}, booktitle = {Information Service Design Symposium 2008}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-759}, pages = {19}, year = {2008}, abstract = {In this report we present an architectural approach to add quality-of-service (QoS) assurance and location awareness to service-based systems within existing clinical infrastructures. To address typical design requirements of such systems (e.g., cooperating services, performance and availability) the work proposes a service-oriented architecture (SOA) as architectural concept and architectural translucency to provide stable QoS. We evaluate position sensing systems, QoS assurance approaches and present design principles for service-based health care applications. Furthermore, we present a clinical application scenario and an architectural approach to integrate existing infrastructure into a human centric assistance system.}, language = {en} } @article{Stantchev2009, author = {Stantchev, Vladimir}, title = {Wissen und Technologieaffinit{\"a}t: Herausforderungen bei der Realisierung eines ambienten Ver- und Entsorgungssystems f{\"u}r die Immobilien des Landes Berlin}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-2645}, pages = {335 -- 338}, year = {2009}, abstract = {Berlin ist eine der großen europ{\"a}ischen Hauptst{\"a}dte mit einem breiten Angebot an {\"o}ffentlichen Dienstleistungen (Public Services). 2003 hat der Berliner Senat den „Landesbetrieb f{\"u}r Geb{\"a}udebewirtschaftung" (LfG) gegr{\"u}ndet, der die Facility Management Aktivit{\"a}ten des Landes b{\"u}ndelt. Seit 2005 wird zusammen mit der TU Berlin der Einsatz innovativer Informations-technologien (IT) in diesem Bereich konsequent erweitert. Die Kombination aus einer unauff{\"a}lligen (unobtrusiven) IT-Infrastruktur und einer fl{\"a}chendeckenden und kontextbezogenen Einsetzbarkeit wird oft als ambient bezeichnet und stellt sehr spezifische Anforderungen an die Gestaltung der Mensch-Maschine-Interaktionen. In diesem Beitrag wird die Gestaltung eines Systems f{\"u}r die Ver- und Entsorgung als Teil der Facility Management Aufgaben beschrieben. Ausgehend von der Beschreibung unseres Vorgehensmodells zur Erhebung der Ist-Prozesse und Usability Evaluation, werden in einem zweiten Schritt Nutzerprofile erstellt und die Ist-Prozesse um diese erweitert. Die zweite H{\"a}lfte des Beitrags beschreibt das eingef{\"u}hrte, ambiente Ver- und Entsorgungssystem, zusammen mit einigen Interaktionsszenarien. Abschließend erfolgt eine Evaluierung der Wirtschaftlichkeit und der Usability des Systems.}, language = {de} } @inproceedings{MejiaGlasbergTammetal.2011, author = {Mejia, F. and Glasberg, Ronald and Tamm, Gerrit and Lopez, Gabriel J.}, title = {Readiness Level to adopt Smart Grid Technologies: Study for the City of Medellin}, isbn = {978-1-4577-1802-1}, year = {2011}, abstract = {The smart grid development in Latin America shows a big gap in the amount of research and development when compared with the USA and EU where the topic has been active for almost 10 years. In this context two different models and expert surveys are used in this study to evaluate the readiness level of the city of Medellin to adopt smart grid technologies. The results of this study show that the City has the utilities, the knowledge, the universities and the human resource to become a role model in the region. But an effort to integrate all the actors and impulse a common agenda is required. The utility companies need to lead this development, but regulators, academia and industry must back up this endeavor and enable Medellin to lead the power grid development of the next years in the region.}, language = {en} } @incollection{StantchevStantcheva2012, author = {Stantchev, Vladimir and Stantcheva, Lubomira}, title = {Applying IT-Governance Frameworks for SOA and Cloud Governance}, series = {Communications in Computer and Information Science}, booktitle = {Communications in Computer and Information Science}, publisher = {SRH Berlin University of Applied Sciences}, pages = {398 -- 407}, year = {2012}, abstract = {Service-oriented architecture (SOA) in the enterprise was one of the key enablers for cloud computing. Therefore, it can serve as a natural fit for bringing traditional IT governance approaches forward to the challenges of cloud governance. In this work we present an approach for mapping IT governance mindsets to the aspects of SOA governance. It allows an IT organisation the adaptation and the continuous usage of already established governance models during the adoption of cloud computing solutions. We also present an application case study where we demonstrate the feasibility of the approach in real-life scenarios in the context of an international telecommunication provider.}, language = {en} } @incollection{StantchevTammPetruch2012, author = {Stantchev, Vladimir and Tamm, Gerrit and Petruch, Konstantin}, title = {Simulation-Based IT Process Governance}, series = {Communications in Computer and Information Science}, volume = {278}, booktitle = {Communications in Computer and Information Science}, editor = {Lytras, Miltiadis D.}, publisher = {Springer}, address = {Berlin}, publisher = {SRH Berlin University of Applied Sciences}, pages = {206 -- 215}, year = {2012}, abstract = {IT departments within enterprises often utilize incident management and ticketing systems. While performance data from such systems is often stored in logfiles it is rarely evaluated extensively. In this work we assess the applicability of an approach for extended evaluation of logged data from such systems. Our evaluation is focused on Key Performance Indicators (KPIs) and aims to discover more in-depth insights as compared to typical data visualization and dashboard techniques. We also present a practical case study where we demonstrate the feasibility of the approach using real-life logfiles from an international telecommunication provider. Our modeling methodology is based on the approach of System Dynamics.}, language = {en} } @article{StantchevTammPetruch2012, author = {Stantchev, Vladimir and Tamm, Gerrit and Petruch, Konstantin}, title = {Assessing and governing IT-staff behavior by performance-based simulation}, series = {Computers in Human Behavior}, volume = {29}, journal = {Computers in Human Behavior}, number = {2}, pages = {473 -- 485}, year = {2012}, abstract = {When optimizing IT operations organizations typically aim to optimize resource usage. In general, there are two kinds of IT resources - IT infrastructures and IT staff. An optimized utilization of these resources requires both quantitative and qualitative analysis. While IT infrastructures can offer raw data for such analyses, data about IT staff often requires additional preparation and augmentation. One source for IT staff-related data can be provided by incident management and ticketing systems. While performance data from such systems is often stored in logfiles it is rarely evaluated extensively. In this article we propose the usage of such data sources for IT staff behavior evaluation and also present the relevant augmentation techniques. We claim that our approach is able to provide more in-depth insights as compared to typical data visualization and dashboard techniques. Our modeling methodology is based on the approach of system dynamics. We also provide formal models and simulation results where we demonstrate the feasibility of the approach using real-life logfiles from an international telecommunication provider.}, language = {en} } @article{StantchevTamm2012, author = {Stantchev, Vladimir and Tamm, Gerrit}, title = {Reducing Information Asymmetry in Cloud Marketplaces}, series = {International Journal of Human Capital and Information Technology Professionals (IJHCITP)}, volume = {3}, journal = {International Journal of Human Capital and Information Technology Professionals (IJHCITP)}, number = {4}, pages = {1 -- 10}, year = {2012}, abstract = {Cloud Computing is emerging as a predominant paradigm for obtaining and providing computing functionality in the enterprise. Organizations that are planning to use cloud computing offerings struggle with the question "How do I choose the right offering?" Cloud offerings exhibit a variety of pricing models and different levels of service and functionality. In this article the authors define first Cloud Computing in the context of IT Governance. Then they set criteria to compare different offerings at the level of Software-as-a-Service (SaaS). This is an important precondition for the reduction of the verifiable information asymmetry and uncertainty in the cloud market. Besides deficiencies on the supply side, regarding configuration, display and communication of service bundles, the limited knowledge of potential buyers is main reason for the modest adoption. The authors apply strategies derived from information economics to reduce this asymmetry by integrating information substitutes in the service marketplace description, thereby transforming experience and credence qualities into search qualities.}, language = {en} } @article{StantchevMalek2011, author = {Stantchev, Vladimir and Malek, Miroslaw}, title = {Addressing Dependability throughout the SOA Life Cycle}, series = {IEEE Transactions on Services Computing}, volume = {4}, journal = {IEEE Transactions on Services Computing}, number = {2}, pages = {85 -- 95}, year = {2011}, abstract = {Dependability should be considered throughout the phases of the SOA life cycle. This article proposes the application of a service level management approach to address dependability and presents dependability-related activities for every stage (Model, Assemble, Deploy, and Manage) of the SOA life cycle. Furthermore, we describe the concepts and the formalisms that are behind these activities. Following these activities service providers and aggregators can offer optimized levels of dependability from their existing services and thus better meet user requirements.}, language = {en} } @article{PetruchTammStantchev2012, author = {Petruch, Konstantin and Tamm, Gerrit and Stantchev, Vladimir}, title = {Deriving In-Depth Knowledge from IT-Performance Data Simulations}, series = {International Journal of Knowledge Society Research (IJKSR)}, volume = {3}, journal = {International Journal of Knowledge Society Research (IJKSR)}, number = {2}, pages = {13 -- 29}, year = {2012}, abstract = {Knowledge of behavioral patterns of a system can contribute to an optimized management and governance of the same system, or of similar systems. While human experience often manifests itself as intuition, intuition can be notoriously misleading, particularly in the case of quantitative data and subtle relations between different data sets. This article augments managerial intuition with knowledge derived from a specific byproduct of automated transaction processing performance and log data of the processing software. More specifically, the authors consider data generated by incident management and ticketing systems within IT support departments. The authors' approach utilizes a rigorous analysis methodology based on System Dynamics. This allows for identifying real causalities and hidden dependencies between different datasets. The authors can then use them to derive and assemble knowledge bases for improved management and governance in this context. This approach is able to provide more in depth insights as compared to typical data visualization and dashboard techniques. In the experimental results section, the authors demonstrate the feasibility of the approach. It is applied on real life datasets and log files from an international telecommunication provider and considered different improvements in management and governance that result from it.}, language = {en} } @article{StantchevStantcheva2012, author = {Stantchev, Vladimir and Stantcheva, Lubomira}, title = {Extending Traditional IT-Governance Knowledge Towards SOA and Cloud Governance}, series = {International Journal of Knowledge Society Research}, volume = {3}, journal = {International Journal of Knowledge Society Research}, number = {2}, pages = {30 -- 43}, year = {2012}, abstract = {Enterprises today often strive to keep up with the paces of technological development. A particular case in point is the IT function where traditional governance approaches are often questioned by technology trends. Examples for such trends in the last ten years are the service-oriented architecture (SOA) and cloud computing. The introduction of SOA in the enterprise was one of the key enablers for cloud computing. Therefore, it can serve as a natural fit for bringing traditional IT governance approaches forward to the challenges of cloud governance. This article presents an approach for extending IT governance mindsets to the areas of SOA and cloud governance. It allows an IT organisation the adaptation and the continuous usage of already established governance knowledge and models during the adoption of cloud computing solutions. The authors also present an application case study where they demonstrate the feasibility of the approach in real-life scenarios in the context of an international telecommunication provider.}, language = {en} } @article{PetruchStantchevTamm2011, author = {Petruch, Konstantin and Stantchev, Vladimir and Tamm, Gerrit}, title = {A Survey on IT-Governance Aspects of Cloud Computing}, series = {International Journal of Web and Grid Services}, volume = {7}, journal = {International Journal of Web and Grid Services}, number = {3}, pages = {268 -- 303}, year = {2011}, abstract = {The purpose of this work is to provide a representative survey of current trends in the perception, assessment and adoption of cloud computing within the enterprise. Cloud computing can be regarded as the general principle for using and providing web and grid services. First, we provide a meta-study, where we evaluate existing and published empirical studies. Furthermore, we conduct and evaluate an own empirical study with a representative group of European and International enterprises. Key findings of the work include the significantly higher importance of Business Drivers for the adoption of cloud computing, as compared to Technical Drivers.}, language = {en} } @incollection{StantchevTamm2011, author = {Stantchev, Vladimir and Tamm, Gerrit}, title = {Addressing Non-Functional Properties of Services in IT Service Management}, series = {Non-Functional Properties in Service Oriented Architecture: Requirements, Models and Methods}, booktitle = {Non-Functional Properties in Service Oriented Architecture: Requirements, Models and Methods}, publisher = {IGI Global}, address = {Hershey}, publisher = {SRH Berlin University of Applied Sciences}, pages = {324 -- 334}, year = {2011}, abstract = {A key point that remains to be addressed is the assurance of service levels for end-user applications that rely on these provider models. This chapter describes an approach for addressing non-functional properties (NFPs) of services in service-oriented architectures (SOA). The approach is based on reference models such as the IT Infrastructure Library (ITIL) and the SOA life cycle model. It has been applied in several industrial settings in the telecommunications sector.}, language = {en} } @incollection{BochenekTamm2009, author = {Bochenek, Adam and Tamm, Gerrit}, title = {Social Media Marketing Services for Mobile Applications}, series = {Wireless Communication and Information: Radio Engineering and Multimedia Applications}, booktitle = {Wireless Communication and Information: Radio Engineering and Multimedia Applications}, editor = {Sieck, J{\"u}rgen}, publisher = {Verlag Werner H{\"u}lsbusch}, address = {Boizenburg}, publisher = {SRH Berlin University of Applied Sciences}, pages = {185 -- 202}, year = {2009}, abstract = {Keine Angabe No details}, language = {en} } @book{UlrichTamm2008, author = {Ulrich, Peter and Tamm, Gerrit}, title = {Corporate- und Webinterface Design f{\"u}r ein Online-Unternehmen: Analyse, Konzeption und Realisierung am Beispiel des Online-Jobportals absolvent.de}, publisher = {VDM Verlag Dr. M{\"u}ller}, address = {Saarbr{\"u}cken}, isbn = {978-3-639-04088-3}, publisher = {SRH Berlin University of Applied Sciences}, pages = {105}, year = {2008}, abstract = {Absolvent.de ist ein seit 1998 bestehendes Online-Jobportal, welches sich auf die Vermittlung von Jobs und Praktika f{\"u}r Hochschulabsolventen spezialisiert hat. Im Zuge eines bevorstehenden Relaunchs sollen neben den Funktionalit{\"a}ten und eingesetzten Technologien auch das Corporate Design und das Webinterface Design erneuert werden. Die Entwicklung von Corporate Design und Webinterface Design f{\"u}r absolvent.de ist Gegenstand dieser Arbeit. Dazu werden im theoretischen Teil der Arbeit objektive Anforderungen und Funktionen des Corporate Designs und des Webinterface Designs genannt und erl{\"a}utert. Im praktischen Teil werden am Beispiel des Online-Jobportals absolvent.de systematische Methoden f{\"u}r die Entwicklung eines den Anforderungen entsprechenden Corporate- und Webinterface Designs aufgezeigt und angewendet. Anhand des systematischen Vorgehens bei der Designentwicklung wird die schrittweise Verringerung der Komplexit{\"a}t der Aufgabenstellung deutlich und die entwickelten Ergebnisse werden plausibel und nachvollziehbar. Das Buch dient als Leitfaden bei der Entwicklung von Corporate Design und Webinterface Design und richtet sich somit an Grafik-, Web- und Interfacedesigner.}, language = {de} } @incollection{TammUllrich2012, author = {Tamm, Gerrit and Ullrich, Sebastian}, title = {Agile Software Architecture for Interactive Media Facades}, series = {Urban media cultures}, booktitle = {Urban media cultures}, editor = {Pop, Susa}, publisher = {avedition}, address = {Ludwigsburg}, publisher = {SRH Berlin University of Applied Sciences}, pages = {176 -- 179}, year = {2012}, abstract = {Keine Angabe No details}, language = {en} } @incollection{WinklerSchoendienstTamm2009, author = {Winkler, Till J. and Sch{\"o}ndienst, Valentin and Tamm, Gerrit}, title = {Wireless City Berlin: solutions for a Smarter City}, series = {Wireless Communication and Information}, booktitle = {Wireless Communication and Information}, editor = {Sieck, J{\"u}rgen}, publisher = {Verlag Werner H{\"u}lsbusch}, address = {Boizenburg}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-6441}, publisher = {SRH Berlin University of Applied Sciences}, pages = {207 -- 220}, year = {2009}, abstract = {Cities in Europe face the challenge of combining competitiveness and sustainable urban development. Technology such as wireless communication and ubiquitous computing is playing an increasingly important role in this context, helping to co-create solutions which can make the urban space „smarter‟. The city of Berlin is launching the project „Wireless City Berlin‟ (WCB) to demonstrate the potential of such technologies in multiple application scenarios. This paper analyses the terms „smart‟ and „wireless‟ with respect to urban development and introduces a typology of wireless city initiatives. Further, it presents the main work areas of the WCB project and relates it to other wireless city initiatives in Europe.}, language = {en} } @incollection{GuentherTamm2000, author = {G{\"u}nther, Oliver and Tamm, Gerrit}, title = {A Framework for ASP-Marketplaces}, series = {Cooperative Information Systems}, booktitle = {Cooperative Information Systems}, editor = {Scheuermann, Peter}, publisher = {Springer}, address = {Berlin}, publisher = {SRH Berlin University of Applied Sciences}, pages = {114 -- 119}, year = {2000}, abstract = {For organizations that plan to use online software applications via Internet one of the most important questions is, "How do you choose the right ASP for the companies corporate needs?". ASP marketplaces offer a plurality of pricing models and different levels of service. From whole system and whole service to single applications and methods, every digital product and service can be provided through an ASP marketplace. There is a need for ASP marketplaces, which gives the user a transparent insight into the ASP market. In this paper we define Application Service Providing in the context of Outsourcing. Then we analyze relevant software classes for ASP marketplaces. Finally we will set criteria to compare different levels of service of ASP marketplace. This paper gives an overview of key characteristics ASP marketplace provider must take into account by preparing the business process in order to successfully deliver application services.}, language = {en} } @article{StantchevTamm2012, author = {Stantchev, Vladimir and Tamm, Gerrit}, title = {Reducing Information Asymmetry in Cloud Marketplaces}, series = {International Journal of Human Capital and Information Technology Professionals}, volume = {3}, journal = {International Journal of Human Capital and Information Technology Professionals}, number = {4}, pages = {1 -- 11}, year = {2012}, abstract = {Cloud Computing is emerging as a predominant paradigm for obtaining and providing computing functionality in the enterprise. Organizations that are planning to use cloud computing offerings struggle with the question "How do I choose the right offering?" Cloud offerings exhibit a variety of pricing models and different levels of service and functionality. In this article the authors define first Cloud Computing in the context of IT Governance. Then they set criteria to compare different offerings at the level of Software-as-a-Service (SaaS). This is an important precondition for the reduction of the verifiable information asymmetry and uncertainty in the cloud market. Besides deficiencies on the supply side, regarding configuration, display and communication of service bundles, the limited knowledge of potential buyers is main reason for the modest adoption. The authors apply strategies derived from information economics to reduce this asymmetry by integrating information substitutes in the service marketplace description, thereby transforming experience and credence qualities into search qualities.}, language = {en} } @inproceedings{OpazoBasaezGhulamAriasArandaetal.2014, author = {Opazo Basaez, Marco and Ghulam, Sarfaraz and Arias Aranda, Daniel and Stantchev, Vladimir}, title = {Smart healthcare services: a patient oriented cloud computing solution}, pages = {18}, year = {2014}, abstract = {Objectives/rationale: Healthcare systems all over the world are facing difficult challenges that have a direct impact and influence the delivery of healthcare services. As a response healthcare institutions are relying in the implementation of Information and communication technologies (ICTs) to overcome difficulties and satisfy patients' demands in a cost-effective way adopting new technologies capable to innovate, extend, and redefine the way healthcare has been delivered for decades. New technological innovations such as Internet of things (IoT), Smart item technology, and cloud computing can improve the traditional e-healthcare system and extend service provision beyond the hospital facilities by using wireless sensor networks (WSN) and radio frequency identification devices (RFID), providing a new type of services advertised as "smart." This type of services, enable doctors to treat patients remotely and allows people to do their normal daily routines, occupations, and activities while receiving appropriate, timely, and high-quality ubiquitous healthcare services. Methods: An exploratory study is performed to review the route towards smart healthcare services, emphasizing the use of information and communication technologies (ICTs) and smart item technology as enhancers for smart healthcare services provision. Results/findings: A new technological infrastructure promises to transform medical practice and disease prevention by empowering healthcare institutions with smart items for remote patient monitoring eliminating time-wasting procedures, reducing health costs, improving quality of service and patients satisfaction. Implications/conclusions: Traditional e-healthcare system is transitioning into an interconnected smart-healthcare system potentiated by new technological advances capable to extend healthcare service provision and offer smart healthcare services.}, language = {en} } @inproceedings{TammWuensche2003, author = {Tamm, Gerrit and W{\"u}nsche, Maria}, title = {Strategies to reduce information asymmetry in Web Service Market}, series = {Proceedings of the Eleventh European Conference on Information Systems}, booktitle = {Proceedings of the Eleventh European Conference on Information Systems}, editor = {Ciborra, C. U. and Mercurio, R. and de Marco, M. and Martinez, M. and Carignani, A.}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-7034}, pages = {1898 -- 1912}, year = {2003}, abstract = {The web service model provides fundamental advantages compared to the classical software usage model. But transactions in the web service market have by far not reached the expected level. A reason for the tendency of market failure is the verifiable information asymmetry and uncertainty in the web service market. Besides deficiencies on the supply side, regarding configuration, display and communication of web service bundles, the limited web service knowledge of potential buyers are constitutional causes to the modest development and enforcement of the web service model. By the help of strategies derived from information economics the present study elaborates measures to take in order to prevent the market for web based services from failing. The conclusions of an online-based questioning experiment offer strategic recommendations to reduce buyer's uncertainty in outsourcing decision. Results of the experiment point out the significant positive impact to reduce information asymmetry and transaction uncertainty in the web service market by integrating information substitutes in the web service bundle in order to transform experience and credence qualities into search qualities. It can be verified that web service customers have a higher willingness to pay when information substitutes are integrated into the web service bundle.}, language = {en} } @inproceedings{TammGuenther2000, author = {Tamm, Gerrit and G{\"u}nther, Oliver}, title = {Business Models for ASP Marketplaces}, series = {Proceedings of the Eighth European Conference on Information Systems}, booktitle = {Proceedings of the Eighth European Conference on Information Systems}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-7046}, pages = {968 -- 975}, year = {2000}, abstract = {Abstract: ASP (Application Server Provider) marketplaces provide a fundamental alternative to the classical business model of software licensing. At this point, it is still unclear why and when customers prefer the ASP model over more traditional approaches. To make ASP more attractive, more knowledge about possible pricing and product strategies is needed. In this paper we describe different business models for ASP marketplaces. We first compare the cost structures of the classical licensing model with the new server-based approach. Then we illustrate how price and product differentiation may improve overall market efficiency. In particular, we show that by selling different software versions for different prices, ASP marketplaces may obtain near-optimal revenues with products that are relatively inexpensive, disaggregated, and customizable. Consumers can thus choose between a wide variety of product lines to fit their differing budgets and requirements.}, language = {en} } @article{GerkeTamm2008, author = {Gerke, Kerstin and Tamm, Gerrit}, title = {Process mining and data aggregation strategies for business collaboration networks}, series = {Journal Communications of Arab Computer Society}, volume = {1}, journal = {Journal Communications of Arab Computer Society}, number = {1}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-6490}, pages = {10}, year = {2008}, abstract = {Business collaboration and information sharing becomes more and more important for companies, mainly driven by economics of scale and the strategic value of network knowledge. In this paper we will describe how process mining results will increase the willingness of cross company data aggregation and the usage of shared business collaboration infrastructures. The results of our contributions are based on process and data analyses in the customer relation management of a leading German passenger airline. As information sharing is considered a central challenge among supply chain partners, we describe the role of data aggregation as a requirement for process mining in collaborative infrastructures. Aggregating data on the one hand can preserve companies from compromising their local data. On the other hand valuable network information may get lost. We use process mining to derive collaborative business process models. Therefore, we evaluate the impact of data aggregation on the significance of process mining results.}, language = {en} } @article{TammPetruchBennemann2008, author = {Tamm, Gerrit and Petruch, Konstantin and Bennemann, Michael}, title = {SaaS - Software as a Service: Herausforderungen f{\"u}r IT-Abteilungen}, series = {Journal IM Information Management}, volume = {23}, journal = {Journal IM Information Management}, number = {4}, pages = {12 -- 18}, year = {2008}, abstract = {Das SaaS-Gesch{\"a}ftsmodell stellt IT-Abteilungen vor neue Herausforderungen und M{\"o}glichkeiten. IT-Abteilungen sind gefordert SaaS-Angebote in bestehende IT-Landschaften zu integrieren. Zudem k{\"o}nnen IT-Abteilungen selbst SaaS-Angebot bereitstellen und sich damit einen neuen Markt unternehmensintern und unternehmens{\"u}bergreifend erschließen. GobiT und ITIL k{\"o}nnen f{\"u}r die Steuerung des SaaS-Lieferanten- und Kundenbeziehungsmanagement und f{\"u}r die SaaS-Produktion sinnvoll eingesetzt werden.}, language = {de} } @article{GuentherTammLeymann2007, author = {G{\"u}nther, Oliver and Tamm, Gerrit and Leymann, Frank}, title = {Pricing web services}, series = {International Journal of Business Process Integration and Management (IJBPIM)}, volume = {2}, journal = {International Journal of Business Process Integration and Management (IJBPIM)}, number = {2}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-6511}, pages = {132 -- 140}, year = {2007}, abstract = {This paper focuses on the challenges associated with composing and pricing web services. We present the results of an online experiment, where subjects were confronted with a variety of choices and decisions relating to web service markets and service composition. Our analysis shows that people expect the price of a composite web service to be lower than the sum of the prices of the elementary services, that is, users are not willing to pay for aggregation by a third party. To obtain a viable business model for composite web services, non-standard pricing mechanisms, such as auctions and negotiations, possibly supported by electronic agents, have to be taken into consideration. Usage-based pricing schemes, combined with an option to switch to a flat subscription, seem most appropriate to penetrate the developing market for web services.}, language = {en} } @article{GuentherTammHansenetal.2001, author = {G{\"u}nther, Oliver and Tamm, Gerrit and Hansen, Lars and Meseg, Thomas}, title = {Application Service Providers: Angebot, Nachfrage und langfristige Perspektiven}, series = {Fachzeitschrift Wirtschaftsinformatik}, volume = {43}, journal = {Fachzeitschrift Wirtschaftsinformatik}, number = {6}, pages = {555 -- 567}, year = {2001}, abstract = {Netzbasierte Dienste, im englischen Sprachraum als Web-based Services oder Hosted Services bekannt, gewinnen zunehmend an Popularit{\"a}t. Zahlreiche Softwareanbieter pr{\"a}sentieren sich am Markt als Application Service Provider (ASP), d.h. als Anbieter netzbasierter Anwendungsdienste. Hierbei kann das ASP-Modell den einzigen Vertriebskanal darstellen (reiner ASP) oder aber als Erg{\"a}nzung neben das klassische Lizenzmodell treten. W{\"a}hrend junge Firmen (wie z. B. Salesforce.com) ihr Gl{\"u}ck als reiner ASP versuchen, w{\"a}hlen etablierte Anbieter im Regelfall die zuletzt genannte Option SAP mit seinem ASP-Produkt mySAP.com ist hierf{\"u}r eines der bekannteren Beispiele.}, language = {de} } @inproceedings{GerkePetruchTamm2010, author = {Gerke, Kerstin and Petruch, Konstantin and Tamm, Gerrit}, title = {Optimization of Service Delivery through Continual Process Improvement: a Case Study}, series = {40. Jahrestagung der Gesellschaft f{\"u}r Informatik e.V. (GI), Leipzig}, booktitle = {40. Jahrestagung der Gesellschaft f{\"u}r Informatik e.V. (GI), Leipzig}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-6537}, year = {2010}, abstract = {In order to deliver services of high quality in a cost-effective manner, processes and their support through information technology (IT) play an increasingly significant role. We present an approach, which allows optimizing the service delivery through continual process improvement. This approach combines the 7-step improvement process recommended by ITIL with process mining. On the basis of suggestions derived from process mining, performance indicators of different services are determined and subsequently compared as part of an internal benchmark. The approach, which will be trialed in practice, enables the optimization of service delivery certainly, but it is also concerned with the most effective utilization of limited resources in terms of people and tools.}, language = {en} } @inproceedings{StantchevTamm2010, author = {Stantchev, Vladimir and Tamm, Gerrit}, title = {SOA Governance for the Internet of Services}, series = {18th Biennial Conference of the International Telecommunications Society, Tokio}, booktitle = {18th Biennial Conference of the International Telecommunications Society, Tokio}, year = {2010}, abstract = {Keine Angabe No details}, language = {en} }