TY - JOUR A1 - Stantchev, Vladimir A1 - Tamm, Gerrit A1 - Ullrich, Sebastian T1 - Marktplätze in der Cloud: Application Stores für mobile und webbasierte Dienste JF - ISIS Cloud und SaaS Report 2011 N2 - Cloud-Computing, insbesondere „Software as a Service (SaaS)“ und „Platform as a Service (PaaS)“ ist zugleich Herausforderung und Chance für IT-Anwender. Marktplatz-Ansätze aus der Welt der mobilen Applikationen (App Stores) können eine Grundlage für die Vermarktung von Software-Diensten darstellen. Ihre Konzepte lassen sich jedoch nur durch eine erweiterte Betrachtung von funktionalen und nicht-funktionalen Aspekten der webbasierten Dienste in die Welt des Cloud Computing übertragen. Application Stores und Marktplätze für webbasierte Dienste (z.B. Asperado, Cloud-Portal, Software-Marktplatz) helfen bei Identifizierung und Bewertung der Angebote und bei der Kommunikation mit potentiellen Kunden. KW - Cloud-Computing KW - Marktplatz KW - SaaS KW - PaaS Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0298-opus4-689 SP - 99 EP - 101 ER - TY - CHAP A1 - Mejia, F. A1 - Glasberg, Ronald A1 - Tamm, Gerrit A1 - Lopez, Gabriel J. T1 - Readiness Level to adopt Smart Grid Technologies: Study for the City of Medellin N2 - 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. KW - Power Distribution KW - Power Grids KW - Power System Economics KW - Power System Planning KW - Smart Grids Y1 - 2011 SN - 978-1-4577-1802-1 N1 - Volltext aus urheberrechtlichen Gründen nicht verfügbar. Fulltext due to copyright not available. ER - TY - JOUR A1 - Petruch, Konstantin A1 - Stantchev, Vladimir A1 - Tamm, Gerrit T1 - A Survey on IT-Governance Aspects of Cloud Computing JF - International Journal of Web and Grid Services N2 - 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. KW - IT Governance KW - Cloud Computing KW - Web Services Management KW - Information Technology KW - Business Drivers Y1 - 2011 N1 - Online: https://www.researchgate.net/publication/220403226_A_survey_on_IT-governance_aspects_of_cloud_computing VL - 7 IS - 3 SP - 268 EP - 303 ER - TY - CHAP A1 - Stantchev, Vladimir A1 - Tamm, Gerrit T1 - Addressing Non-Functional Properties of Services in IT Service Management T2 - Non-Functional Properties in Service Oriented Architecture: Requirements, Models and Methods N2 - 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. KW - Non-Functional Properties KW - IT Service KW - Service-Oriented Architecture Y1 - 2011 N1 - Online: https://www.researchgate.net/publication/286454960_Addressing_Non-Functional_Properties_of_Services_in_IT_Service_Management SP - 324 EP - 334 PB - IGI Global CY - Hershey ER -