@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} } @inproceedings{PittkeLeopoldMendlingetal.2012, author = {Pittke, Fabian and Leopold, Henrik and Mendling, Jan and Tamm, Gerrit}, title = {Enabling Reuse of Process Models through the Detection of Similar Process Parts}, series = {Business Process Management Workshops}, booktitle = {Business Process Management Workshops}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-642-36284-2}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-40}, pages = {586 -- 597}, year = {2012}, abstract = {Many companies use business process modeling to support various improvements initiatives leading to an increasing number of process models. Typically, these models are stored in a collection containing several hundreds of process models. In many cases, process models are overlapping, although parts could be easily reused saving costs and efforts. Different labeling styles and evolving process models complicate the detec- tion of reusable model parts. In this paper, we propose a novel approach for the detection of equivalent and similar process model parts that ex- ploits semantic comparison of activity labels and behavioral comparison of control flow. We evaluate our approach on the SAP Reference Model, a collection with 604 process models. The evaluation reveals insights for the thresholds of semantic and behavioral similarity of process models as well as their influence for similar process part detection. Hence, we identify five candidate groups with specific similarity properties that contain reoccurring process parts.}, language = {en} } @article{StantchevTammUllrich2011, author = {Stantchev, Vladimir and Tamm, Gerrit and Ullrich, Sebastian}, title = {Marktpl{\"a}tze in der Cloud: Application Stores f{\"u}r mobile und webbasierte Dienste}, series = {ISIS Cloud und SaaS Report 2011}, journal = {ISIS Cloud und SaaS Report 2011}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-689}, pages = {99 -- 101}, year = {2011}, abstract = {Cloud-Computing, insbesondere „Software as a Service (SaaS)" und „Platform as a Service (PaaS)" ist zugleich Herausforderung und Chance f{\"u}r IT-Anwender. Marktplatz-Ans{\"a}tze aus der Welt der mobilen Applikationen (App Stores) k{\"o}nnen eine Grundlage f{\"u}r 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 {\"u}bertragen. Application Stores und Marktpl{\"a}tze f{\"u}r webbasierte Dienste (z.B. Asperado, Cloud-Portal, Software-Marktplatz) helfen bei Identifizierung und Bewertung der Angebote und bei der Kommunikation mit potentiellen Kunden.}, language = {de} } @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} } @inproceedings{SchubertMautschStantchevetal.2013, author = {Schubert, Johannes and Mautsch, Erik and Stantchev, Vladimir and Tamm, Gerrit}, title = {Rechtliche Rahmenbedingungen f{\"u}r die Datenerhebung durch AAL-Infrastruktur bei der Pflege}, url = {http://nbn-resolving.de/urn:nbn:de:0298-opus4-2607}, pages = {5}, year = {2013}, abstract = {Bei der Datenerhebung und -verarbeitung durch AAL-Infrastruktur im Pflegesektor sind rechtliche Rahmenbedingungen zu pr{\"u}fen, die die Nutzung der Messdaten juristisch zul{\"a}ssig machen. Hierzu wurden die in der praxisnahen Pflegeliteratur dargestellten Rechtsnormen zusammengefasst und kategorisiert. Somit ließ sich ermitteln, welche Daten als sch{\"u}tzenswert zu definieren und mit welchen Sicherungsmaßnahmen zu versehen sind. Auf dieser Basis kann ein Ansatz pr{\"a}sentiert werden, der eine rechtlich unbedenkliche Absicherung aller technischen Elemente bei der Implementierung einer AAL-Infrastruktur in der Pflege erm{\"o}glicht.}, language = {de} } @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} }