Contact Person
Dipl.-Inform. Nikolay Vassilev Tcholtchev
Senior Scientist
Business Unit SQC
Tel.: +49 30 3463-7175

Nikolay Tcholtchev (Dipl.-Inform.) is a Scientist at the Competence Center SQC.

Education & Career

Nikolay Tcholtchev holds a master degree from the Berlin University of Technology. He is currently working for the Fraunhofer Institute for Open Communication Systems (FOKUS) where he participates in projects related to the areas of Autonomic Communications and Computing, Model-based Testing, Future Internet, IPv6, Smart Cities, and Risk based testing for Security purposes. Currently, Nikolay Tcholtchev pursues a Phd. within the area of Fault-Tolerance and Resilience in IP networks.

  • Since 01/2008: Researcher at Fraunhofer Institute for Open Communication Systems (FOKUS) in Berlin: Autonomic Systems Engineering, Network Management, Model-based Testing of security aspects with UML 2.0 and TTCN-3, Smart Cities, IPv6 Certification Testing

  • 04/2007 – 10/2007: Software Engineer at Nokia Siemens Networks Berlin

  • 10/2006 – 03/2007: Software Engineer in Research & Development, Student Assistant at Siemens Networks in Berlin

  • 06/2003 – 10/2006: Software Engineer in Research & Development, Quality Assurance, Department Software Technology & Tooling Siemens ICM/COM in Berlin

Expertise

  • IPv6 testing
  • Model-based testing with UML2.0 and TTCN-3
  • IPv4/v6 & Ethernet - Configuration and Faultmanagement
  • Network simulation - IP-Addressing and Routing
  • Autonomic Systems Engineering
  • Future Internet - clean slate and evolutionary approaches
  • Smart Cities - Open Data, E-Mobility
  • Fault-Tolerance and Resilience in Distributed Systems
  • Expertise on testbed setups and experimental platforms for IP based networks

Projects

Current Projects:

  • Gemo - Collaborative e-Mobility in Urban Areas of the Future
  • OGDD - Open Government Data Germany
  • Industrial Projects within the IPv6 Test Lab
  • IPv6 phase 2 for public administration

Previous Projects:

  • DIAMONDS - Development and Industrial Application of Multi-Domain Security Testing Technologies
  • OpenCities
  • EFIPSANS
  • Autonomic Network Architecture (ANA)
  • Bizware - Model and Software Factory

Publications

Schieferdecker, Ina; Schneider, Martin A.; Tcholtchev, Nikolay:
Systematic analysis of practical issues in test automation for communication based systems : The TAIC Workshop at ICST 2016 Conference, 11.04.2016, Chicago, USA.
2016

Tcholtchev, Nikolay; Schneider, Martin A.; Schieferdecker, Ina:
Systematic analysis of practical issues in test automation for communication based systems.
In: 2016 IEEE Ninth International Conference on Software Testing, Verification and Validation Workshops : proceedings.
Piscataway, NJ [u.a.] : IEEE, 2016, 250-256

Starschenko, Alexej; Tcholtchev, Nikolay; Prakash, Arun; Schieferdecker, Ina; Chaparadza, Ranganai:
Auto-configuration of OSPFv3 routing in fixed IPv6 networks.
In: 2015 7th International congress on ultra modern telecommunications and control systems and workshops (ICUMT) : Brno,Czech Republic, 6-8 October 2015.
Piscataway, NJ : IEEE, 2015, 196-205

Lämmel, Philipp; Tcholtchev, Nikolay; Schieferdecker, Ina:
Integriertes Internet-basiertes System für Authentifizierubng und Autorisierung.
In: PIK-Praxis der Informationsverarbeitung und Kommunikation 38 (2015), 1-2, 43-62

Tcholtchev, Nikolay; Dittwald, Benjamin; Scheel, Thomas; Zilci, Begüm Ilke; Schmidt, Danilo; Lämmel, Philipp; Jacobsen, Jurma; Schieferdecker, Ina:
The concept of a mobility data cloud: design, implementation and trials.
In: Chang, Carl K. (Ed.); IEEE:
38th annual IEEE computer software and applications conference workshops (COMPSACW 2014) : 21-25 July 2014, Västerås, Sweden. Online Resource.
Piscataway, NJ : IEEE, 2014, 192-198

Damjanovic, Violeta; Glachs, Dietmar; Tcholtchev, Nikolay; Ras, Eric; Tobias, Eric:
EAGLE - Open data and linked data architecture of an enhanced government learning platform.
In: Rensing, Christoph (Ed.) u.a.:
Open learning and teaching in educational communities : 9th European Conference on technology enhanced learning, EC-TEL 2014, Graz, Austria, September 16-19, 2014 ; proceedings.
Cham [u. a.] : Springer, 2014, 558-559
(Lecture notes in computer science 8719).

Tcholtchev, Nikolay; Schieferdecker, Ina:
Framework for distributed autonomic self-healing in fixed IPv6 networks.
In: International journal of communication systems 27 (2014), 12, 4103-4125

Tcholtchev, Nikolay; Schieferdecker, Ina:
Framework for ensuring runtime stability of control loops in multi-agent networked environments.
In: Gavrilova, Marina L. (Ed.) u.a.:
Transactions on computational science XXII.
Berlin [u.a.] : Springer, 2014, 64-92
(Lecture notes in computer science 8360).

Tcholtchev, N.; Dittwald, B.:
GeMo-Mobilitätsdatencloud : Innovationsnetzwerk Elektromobile Stadt Gemeinschaftliche Mobilitätssysteme, 2014.
2014

Tcholtchev, Nikolay; Dudeck, Grit; Wagner, Michael; Hein, Christian; Prakash, Arun; Ritter, Tom:
Integrating the Modelica DSL into a platform for model-based tool interoperability.
In: Chang, Carl K. (Ed.); IEEE:
38th annual IEEE computer software and applications conference workshops (COMPSACW 2014) : 21-25 July 2014, Västerås, Sweden. Online Resource.
Piscataway, NJ : IEEE, 2014, 528-534

Tcholtchev, Nikolay; Prakash, Arun:
On the need for model driven engineering for data harvesters based on experiences from the german GovData.DE Portal.
In: SharePSI Workshop Lisbon : December 3, 2014 - December 4, 2014.
2014, 1-5

Nieminen, Mikko; Tcholtchev, Nikolay; Schieferdecker, Ina; Räty, Tomi:
Robust architecture for distributed intelligence in an IP-based mobile wide-area surveillance system.
In: The journal of supercomputing 70 (2014), 3, 1-22

Lämmel, Philipp; Tcholtchev, Nikolay (Betreuer); Schieferdecker, Ina (Gutachter); Müller-Birn, Claudia (Gutachter):
Sicherung von Services in der Cloud auf der Basis der Kombination von OpenID und OAuth.
2014
Berlin, Freie Univ., Master's Thesis, 2014

Wagner, Michael; Dudeck, Grit; Hein, Christian; Tcholtchev, Nikolay; Gebhardt, Christian; Korff, Andreas:
VARIES framework to support tool integration in product line engineering.
In: Proceedings of the 18th International Software Product Line Conference : Companion Volume for Workshops, Demonstrations and Tools - Volume 2.
New York, NY : ACM, 2014, 117-120
(Proceedings of the 18th International Software Product Line Conference 2).

Tcholtchev, N.; Dudeck, G.:
Approaches to tools integration and interoperability based on Eclipse technology : Eclipse Demo Camp, 10. Juni 2013, Berlin.
2013

Schneider, Martin A.; Großmann, Jürgen; Tcholtchev, Nikolay; Schieferdecker, Ina; Pietschker, Andrej:
Behavioral fuzzing operators for UML sequence diagrams.
In: Haugen, Øystein (Ed.) u.a.; SDL Forum Society u.a.:
System analysis and modeling: Theory and practice : 7th international workshop, SAM 2012, Innsbruck, Austria, October 1-2, 2012. Revised selected papers.
Berlin [u.a.] : Springer, 2013, 88-104
(Lecture notes in computer science 7744).

Tcholtchev, N.:
Car Sharing - was bringt die Zukunft? Fraunhofer GeMo : CEBIT Forum Smart Infrastructure, 08.März.2013, Hannover.
2013

Wódczak, Michal; Tcholtchev, Nikolay; Vidalenc, Bruno; Li, Yuhong:
Design and evaluation of techniques for resilience and survivability of the routing node.
In: International journal of adaptive, resilient and autonomic systems 4 (2013), 4, 36-63

Marienfeld, F.; Schieferdecker, I.; Lapi, E.; Tcholtchev, N.:
Metadata aggregation at GovData.de : an experience report.
In: Proceedings of the 9th international symposium on open collaboration : WikiSym + OpenSym : August 5-7, 2013, Hong Kong, China.
New York, NY : ACM, 2013, 638-642

Chaparadza, Ranganai; Wodczak, Michal; Ben Meriem, Tayeb; De Lutiis, Paolo; Tcholtchev, Nikolay; Ciavaglia, Laurent:
Standardization of resilience & survivability, and autonomic fault-management, in evolving and future networks : an ongoing initiative recently launched in ETSI.
In: Proceedings of the 9th international conference on the design of reliable communication networks, DRCN 2013.
Piscataway, NJ [u.a.] : IEEE, 2013, 331-341

Tcholtchev, N.; Prakash, A.; Schieferdecker, I.; Chaparadza, R.; Petre, R.:
Auto-Collaboration for optimal network resource utilization in fixed IPv6 networks.
In: 2012 IEEE GLOBECOM workshops. Online Resource : 3 - 7 December 2012, Anaheim, CA, USA.
Piscataway : IEEE, 2012, 807-812

Lapi, Evanela; Tcholtchev, Nikolay; Bassbouss, Louay; Marienfeld, Florian; Schieferdecker, Ina:
Identification and utilization of components for a linked open data platform.
In: 2012 IEEE 36th annual computer software and applications conference workshops (COMPSACW). Online Resource.
Piscataway, NJ : IEEE Communications Society, 2012, 112-115

Lapi, Evanela; Marienfeld, Florian; Tcholtchev, Nikolay; Klessmann, Jens; Schieferdecker, Ina:
Ein Metadaten-Schema für offene Daten, Dokumente und Applikationen.
In: Lutz, Brigitte (Hrsg.) u.a.; ADV-Arbeitsgemeinschaft für Datenverarbeitung <Wien>:
1. ogd d-a-ch-li konferenz, win-win-win für Verwaltung, Wirtschaft und Wissenschaft : 4. Oktober 2012.
Wien : ADV, 2012, 41-51

Tcholtchev, N.:
Mobility Data Cloud : MeetInnoV, Smart Cities Workshop, 22. November 2012, Paris.
2012

Schneider, M.; Tcholtchev, N.; Grossmann, J.; Pietschker, A.; Vouffo Feudjio, A.-G.; Schieferdecker, I.:
Model based behavioural fuzzing for the banking domain : ETSI Model-based Testing User Conference, 25-27 September 2012, Tallinn.
2012

Tcholtchev, Nikolay; Farid, Lena; Marienfeld, Florian; Schieferdecker, Ina; Dittwald, Benjamin; Lapi, Evanela:
On the interplay of open data, cloud services and network providers towards electric mobility in smart cities.
In: 2012 IEEE 37th Conference on Local Computer Networks (LCN Workshops 2012), Clearwater, Florida, USA, 22-25 October 2012.
Piscataway, NJ : IEEE, 2012, 860-867

Tcholtchev, N.:
Open Data activities at Fraunhofer FOKUS : Open Data Sensitization Conference, 30.-31. Oktober 2012, Nairobi, Kenya.
2012

Klessmann, Jens; Denker, Philipp; Schieferdecker, Ina; Schulz, Sönke E.; Hoepner, Petra; Lapi, Evanela; Marienfeld, Florian; Müller, Lena-Sophie; Tcholtchev, Nikolay; Rein-Fischböck, Katharina; Borchers, Kim-Carinna; Janda, Timm; Völz, Dominic; Warnecke, Thomas; Deutschland <Bundesrepublik> / Bundesministerium des Innern:
Open Government Data Deutschland : eine Studie zu Open Government in Deutschland im Auftrag des Bundesministerium des Innern.
2012

Tcholtchev, N.:
A Practical View on the Open Data Platform of Fraunhofer FOKUS : Deployment, Operation and Further Developmentf.
2012

Rebahi, Y.; Tcholtchev, N.; Chaparadza, R.; Merekoulias, V.:
Addressing security issues in the autonomic Future Internet.
In: 8th IEEE Consumer Communications and Networking Conference (CCNC).
2011, 517-518

Kastrinogiannis, T.; Tcholtchev, N.; Prakash, Arun; Chaparadza, R.; Kaldanis, V.; Coskun, H.; Papavassiliou, S.:
Addressing stability in Future Autonomic Networking.
In: Pentikousis, Kostas (Ed.); Institute for Computer Sciences, Social Informatics and Telecommunications Engineering:
Mobile networks and management : second international conference ; MONAMI 2010, Santander, Spain, September 22 - 24, 2010 ; revised selected papers.
Berlin ;Heidelberg [u.a.] : Springer, 2011, 50-61
(Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 68).

Chaparadza, R.; Tcholtchev, N.; Kaldanis, V.:
How autonomic fault-management can address current challenges in fault-management faced in IT and telecommunication networks.
In: Szabó, Róbert (Ed.) u.a.; Institute for Computer Sciences, Social Informatics and Telecommunications Engineering:
Access networks : 5th International ICST Conference on Access Networks, AccessNets 2010 and First ICST International Workshop on Autonomic Networking and Self-Management in Access Networks, SELFMAGICNETS 2010, Budapest, Hungary, November 3 - 5, 2010 ; revised selected papers.
Heidelberg [u.a.] : Springer, 2011, 253-268

Bureck, M.; Wendland, M.-F.; Prakash, A.; Tcholtchev, Nikolay:
Model-Based Test Automation with Fokus!MBT and ModelBus : ETSI Model-Based Testing User Conference (MBTUC), 18.-20. Oktober 2011, Berlin.
2011

Tcholtchev, N.; Chaparadza, R.:
On self-healing based on collaborating end-systems, access and core network components.
In: Szabó, Róbert (Ed.) u.a.; Institute for Computer Sciences, Social Informatics and Telecommunications Engineering:
Access networks : 5th International ICST Conference on Access Networks, AccessNets 2010 and First ICST International Workshop on Autonomic Networking and Self-Management in Access Networks, SELFMAGICNETS 2010, Budapest, Hungary, November 3 - 5, 2010 ; revised selected papers.
Heidelberg [u.a.] : Springer, 2011, 283-298

Liakopoulos, A.; Zafeiropoulos, A.; Marinos, C.; Grammatikou, M.; Tcholtchev, N.; Gouvas, P.:
Applying distributed monitoring techniques in autonomic networks.
In: IEEE Global Telecommunications Conference GLOBECOM 2010 : 6-10 December 2010, Miami, Florida, USA.
Piscataway, NJ : IEEE Service Center, 2010, 498-503

Tcholtchev, N.; Chaparadza, R.:
Autonomic Fault-Management and resilience from the perspective of the network operation personnel.
In: IEEE Global Telecommunications Conference GLOBECOM 2010 : 6-10 December 2010, Miami, Florida, USA.
Piscataway, NJ : IEEE Service Center, 2010, 469-475

Tcholtchev, N.; Cavalcante, A. B.; Chaparadza, R.:
Scalable Markov chain based algorithm for fault-isolation in autonomic networks.
In: IEEE Global Telecommunications Conference GLOBECOM 2010 : 6-10 December 2010, Miami, Florida, USA.
Piscataway, NJ : IEEE Service Center, 2010, 1-6

Tcholtchev, N.; Grajzer, M.; Vidalenc, B.:
Towards a unified architecture for resilience, survivability and autonomic fault-management for self-managing networks.
In: Dan, Asit (Hrsg.) u.a.:
Service-oriented computing - ICSOC/ServiceWave 2009 Workshops : International Workshops, ICSOC/ServiceWave 2009, Stockholm, Sweden, November 23-27, 2009.
Berlin [u.a.] : Springer, 2010, 335-344
(Lecture notes in computer science 6275 : Services Science).

Tcholtchev, N.; Chaparadza, R.; Prakash, A.:
Addressing stability of control-loops in the context of the GANA architecture: synchronization of actions and policies.
In: Spyropoulos, Thrasyvoulos (Hrsg.) u.a.:
Self-organizing systems : 4th IFIP TC6 international workshop, IWSOS 2009, Zurich, Switzerland, December 9-11, 2009.
Berlin [u.a.] : Springer, 2009, 262-268
(Lecture notes in computer science 5918).

Tcholtchev, Nikolay; Schieferdecker, Ina:
Components and Mechanisms of Autonomic Fault-Management for Self-Managing Networks.
2009
Berlin, Tech. Univ., Dipl.-Arb., 2009

Chaparadza, Ranganai; Tcholtchev, Nikolay; Schieferdecker, Ina:
Implementation of the UniFAFF Framework for Autonomic Fault-Management in ANA Networks.
In: Beylot, André-Luc (Ed.) u.a.:
Proceedings of the Third International Conference on the Latest Advances in Networks : ICLAN'2008, Toulouse, France, December10-12, 2008.
2008, 75-81