Mark Strembeck

Mark is an Associate Professor (tenured) at the New Media Lab and the Vice Institute Head of the Institute for Information Systems and New Media. He is the Vice Program Director of WU's Information Systems Master's program, a faculty member of the Research Institute for Cryptoeconomics, a faculty member of the Complexity Science Hub Vienna, and a member of the key researcher team at the Secure Business Austria research and competence center. Mark received two diploma degrees in Business Informatics (Dipl.-Wirt.Inform.) from the University of Essen (Germany) in 1998 and 1999 respectively, and a doctoral degree in Business Informatics (Dr.rer.soc.oec.) from the Vienna University of Economics and Business (WU Vienna) (Austria) in 2003. In 2008, Mark received his Habilitation degree (venia docendi). He participated in national and international research projects and worked as a software developer in several German software companies.

Current Research Interests:

(in no particular order)

• Complex (Networked) Systems
• Network Analysis
• Data Science
• Computational Social Science
• Security Analysis, Security Engineering, Security Management
• Model-driven Software Development
• Domain-specific Languages (DSLs)
• Further (professional) Interests:
• Access Control / Policy Decisions / Policy Enforcement
• Role Engineering / Role Modeling / RBAC Policy Engineering
• Distributed Systems
• Object-Oriented Software Development
• Software-Testing
• Scenario-based Engineering Techniques
• Modeling Dynamic Systems and System Evolution

Teaching:

In English:

• Course: Information Systems Development
• Course: Distributed Systems
• Course: Network Analysis (Information Systems Engineering - Course IV)
• Topics for Bachelor's theses or Master's theses: available on request
• (for an overview of potential topics, see the "Research Interests" section above).
• Ph.D. thesis projects: make an appointment

In German:

• Vorlesung: Daten und Netzwerksicherheit
• Seminar: Konversatorium aus Wirtschaftsinformatik
• Seminar: Forschungsmethoden der Wirtschaftsinformatik für Doktoranden
• Seminar: Informationssysteme, Risikobeurteilung und Risikoentscheidungen
• Diplom-, Master- und Bachelor-Arbeiten: Jederzeit Themen auf Anfrage
• (insb. aus den Bereichen der oben aufgelisteten "Research Interests".)
• Betreuung von Dissertationen: bitte persönlichen Termin vereinbaren

Publications:

Copyright policy:The papers obtained from this Web site are included by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a non-commercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder. Refereed Papers and Articles: (author names on publications before June 2004 appear in alphabetical order)

E. Kušen, M. Strembeck: You talkin' to me? Exploring Human/Bot Communication Patterns during Riot Events, In: Information Processing & Management (IPM), Vol. 57, No. 1, January 2020 (doi)

E. Kušen, M. Strembeck: Something draws near, I can feel it: An Analysis of Human and Bot Emotion-exchange Motifs on Twitter, In: Online Social Networks and Media (OSNEM), Vol. 10-11, May 2019 (doi, pdf)

K. Kueffner, M. Strembeck: A Generalized Notion of Time for Modeling Temporal Networks, In: Proc. of the 4th International Conference on Complexity, Future Information Systems and Risk (COMPLEXIS), Heraklion, Crete, Greece, May 2019 (pdf) M. Moser, M. Strembeck: An Analysis of Three Legal Citation Networks Derived from Austrian Supreme Court Decisions, In: Proc. of the 4th International Conference on Complexity, Future Information Systems and Risk (COMPLEXIS), Heraklion, Crete, Greece, May 2019 (pdf) E. Kušen, M. Strembeck: An Analysis of Emotion-exchange Motifs in Multiplex Networks during Emergency Events, In: Applied Network Science, Vol. 4, March 2019 (doi)

E. Kušen, M. Strembeck, M. Conti: Emotional Valence Shifts and User Behavior on Twitter, Facebook, and YouTube, In: Influence and Behavior Analysis in Social Networks and Social Media, Lecture Notes in Social Networks (LNSN), Springer, February 2019 (doi, pdf)

E. Kušen, M. Strembeck: Investigation of Emotion Exchange Motifs in Bot/Human Interactions during Riot Events, In: Proc. of the 5th International Conference on Social Networks Analysis, Management and Security (SNAMS), IEEE, Valencia, Spain, October 2018 (pdf)

E. Kušen, M. Strembeck: On Message Exchange Motifs Emerging during Human/Bot Interactions in Multilayer Networks: The Case of Two Riot Events, International Workshop on Social Human Behavior Analysis through Online Social Networks and Media (SAO), In: Proc. of the 10th IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), Barcelona, Spain, August 2018 (pdf)

E. Kušen, M. Strembeck: Why so Emotional? An Analysis of Emotional Bot-generated Content on Twitter, In: Proc. of the 3rd International Conference on Complexity, Future Information Systems and Risk (COMPLEXIS), Funchal, Madeira, Portugal, March 2018 (pdf)

E. Kušen, M. Strembeck: On the Public Perception of Police Forces in Riot Events -- The Role of Emotions in Three Major Social Networks During the 2017 G20 Riots, In: Proc. of the 3rd International Conference on Complexity, Future Information Systems and Risk (COMPLEXIS), Funchal, Madeira, Portugal, March 2018 (pdf)

E. Kušen, M. Strembeck: Politics, Sentiments, and Misinformation: An Analysis of the Twitter Discussion on the 2016 Austrian Presidential Elections, In: Online Social Networks and Media (OSNEM), Vol. 5, March 2018 (doi, pdf)

B. Hoisl, S. Sobernig, M. Strembeck: Reusable and Generic Design Decisions for Developing UML-based Domain-specific Languages, In: Information and Software Technology (IST), Vol. 92, December 2017 (doi, pdf)

E. Kušen, G. Cascavilla, K. Figl, M. Conti, M. Strembeck: Identifying Emotions in Social Media: Comparison of Word-emotion lexicons, In: Proc. of the 4th International Symposium on Social Networks Analysis, Management and Security(SNAMS) (co-located with IEEE FiCloud), Prague, Czech Republic, August 2017 (pdf)

E. Kušen, M. Strembeck, G. Cascavilla, M. Conti: On the Influence of Emotional Valence Shifts on the Spread of Information in Social Networks, In: Proc. of the 9th IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), Sydney, Australia, July/August 2017 (pdf)

E. Kušen, M. Strembeck: An Analysis of the Twitter Discussion on the 2016 Austrian Presidential Elections, In: The Computing Research Repository (CoRR), arXiv:1707.09939, July 2017 (pdf)

T. Händler, S. Sobernig, M. Strembeck: Towards Triaging Code-Smell Candidates via Runtime Scenarios and Method-Call Dependencies, In: Proc. of the 9th International Workshop on Managing Technical Debt (MTD), Cologne, Germany May 2017 (pdf)

E. Kušen, M. Strembeck: Security-related Research in Ubiquitous Computing - Results of a Systematic Literature Review, In: The Computing Research Repository (CoRR), arXiv:1701.00773, January 2017 (pdf, SLR protocol)

E. Kušen, M. Strembeck: A Decade of Security Research in Ubiquitous Computing: Results of a Systematic Literature Review, In: International Journal of Pervasive Computing and Communications (IJPCC), Vol. 12, No. 2, July 2016 (doi, SLR protocol)

T. Händler, S. Sobernig, M. Strembeck: Deriving UML-based Specifications of Inter-Component Interactions from Runtime Tests, In: Proc. of the 31st ACM Symposium on Applied Computing (SAC), Pisa, Italy, April 2016 (pdf, extended version)

S. Sobernig, B. Hoisl, M. Strembeck: Extracting Reusable Design Decisions for UML-based Domain-specific Languages: A Multi-method Study, In: Journal of Systems and Software (JSS), Volume 113, March 2016 (doi, pdf, protocol)

T. Händler, S. Sobernig, M. Strembeck: Deriving Tailored UML Interaction Models from Scenario-Based Runtime Tests, In: Software Technologies (Revised Selected Papers of ICSOFT-2015), Communications in Computer and Information Science (CCIS), Volume 586, Springer, February 2016 (doi, pdf)

K. Figl, M. Strembeck: Findings from an Experiment on Flow Direction of Business Process Models, In: Proc. of the 6th International Workshop on Enterprise Modelling and Information Systems Architectures (EMISA), Lecture Notes in Informatics (LNI), Vol. 248, Innsbruck, Austria, September 2015 (pdf)

T. Händler, S. Sobernig, M. Strembeck: An Approach for the Semi-Automated Derivation of UML Interaction Models from Scenario-based Runtime Tests, In: Proc. of the 10th International Conference on Software Engineering and Applications (ICSOFT-EA), Colmar, France, July 2015 (pdf, extended version)

T. Quirchmayr, M. Strembeck: A Discussion of Communication Schemes for Process Execution Histories to Enforce Entailment Constraints in Process-Driven SOAs, In: The Computer Journal, 2015 (doi)

S. Schefer-Wenzl, M. Strembeck: Model-driven Specification and Enforcement of RBAC Break-Glass Policies for Process-Aware Information Systems, In: Information and Software Technology (IST), Vol. 56, No. 10, October 2014 (doi, pdf)

B. Hoisl, S. Sobernig, M. Strembeck: Comparing Three Notations for Defining Scenario-based Model Tests: A Controlled Experiment, In: Proc. of the 9th International Conference on the Quality of Information and Communications Technology (QUATIC), IEEE, Guimaraes, Portugal, September 2014 (ps, pdf)

D. Hopfmüller, S. Schefer-Wenzl, M. Strembeck: Kaskadierender Widerruf von Delegationen in prozessbasierten Informationssystemen, In: Proc. of 44. Jahrestagung der Gesellschaft für Informatik (GI), INFORMATIK 2014, Lecture Notes in Informatics (LNI), Vol. 232, Stuttgart, Germany, September 2014 (ps, pdf, extended version)

S. Schefer-Wenzl, M. Strembeck: Modeling Support for Role-Based Delegation in Process-Aware Information Systems, In: Business & Information Systems Engineering (BISE), Vol. 6, No. 4, August 2014 (doi)

S. Schefer-Wenzl, M. Strembeck: Modellierungsunterstützung für die rollenbasierte Delegation in prozessgestützten Informationssystemen, In: Wirtschaftsinformatik, Vol. 56, No. 4, August 2014 (doi)

K. Figl, M. Strembeck: On the Importance of Flow Direction in Business Process Models, In: Proc. of the 9th International Conference on Software Engineering and Applications (ICSOFT-EA), Vienna, Austria, August 2014 ( pdf)

S. Schefer-Wenzl, H. Bukvova, M. Strembeck: A Review of Delegation and Break-Glass Models for Flexible Access Control Management, In: Proc. of the 6th Workshop on Applications of Knowledge-Based Technologies in Business (AKTB), Lecture Notes in Business Information Processing (LNBIP), Vol. 183, Springer, Larnaca, Cyprus, May 2014 (ps, pdf)

B. Hoisl, S. Sobernig, M. Strembeck: Modeling and Enforcing Secure Object Flows in Process-driven SOAs: An Integrated Model-driven Approach, In: Software and Systems Modeling (SoSyM), Vol. 13, No. 2, May 2014 (doi, pdf)

P. Gaubatz, W. Hummer, U. Zdun, M. Strembeck: Enforcing Entailment Constraints in Offline Editing Scenarios for Real-time Collaborative Web Documents, In: Proc. of the 29th ACM Symposium On Applied Computing (SAC), Gyeongju, Korea, March 2014 (ps, pdf)

B. Hoisl, S. Sobernig, M. Strembeck: Natural-Language Scenario Descriptions for Testing Core Language Models of Domain-specific Languages, In: Proc. of the 2nd International Conference on Model-Driven Engineering and Software Development (MODELSWARD), Lisbon, Portugal, January 2014 (ps, pdf)

M. Strembeck, S. Rinderle-Ma: Security and Privacy in Business Processes: A Posteriori Analysis Techniques, In: Information Technology (it), Vol. 55, No. 6, December 2013 (doi)

W. Hummer, P. Gaubatz, M. Strembeck, U. Zdun, S. Dustdar: Enforcement of Entailment Constraints in Distributed Service-Based Business Processes, In: Information and Software Technology (IST), Vol. 55, No. 11, November 2013 (doi, pdf)

S. Schefer-Wenzl, M. Strembeck: Modeling Context-Aware RBAC Models for Mobile Business Processes, In: International Journal of Wireless and Mobile Computing (IJWMC), Vol. 6, No. 5, 2013 (doi, pdf)

M. Leitner, S. Schefer-Wenzl, S. Rinderle-Ma, M. Strembeck: An Experimental Study on the Design and Modeling of Security Concepts in Business Processes, In: Proc. of the 6th IFIP WG 9.1 Working Conference on The Practice of Enterprise Modeling (POEM), Lecture Notes in Business Information Processing (LNBIP), Vol. 165, Springer, Riga, Latvia, November 2013 (ps, pdf)

S. Sobernig, M. Strembeck, A. Beck: Developing a Domain-specific Language for Scheduling in the European Energy Sector, In: Proc. of the 6th International Conference on Software Language Engineering (SLE), Lecture Notes in Computer Science (LNCS), Vol. 8225, Springer, Indianapolis, IN, USA, October 2013 (ps, pdf)

S. Sobernig, B. Hoisl, M. Strembeck: Requirements-driven Testing of Domain-specific Core Language Models using Scenarios, In: Proc. of the 13th International Conference on Quality Software (QSIC), IEEE, Nanjing, China, July 2013 (ps, pdf)

P. Gaubatz, W. Hummer, U. Zdun, M. Strembeck: Supporting Customized Views for Enforcing Access Control Constraints in Real-time Collaborative Web Applications, In: Proc. of the 13th International Conference on Web Engineering (ICWE), Lecture Notes in Computer Science (LNCS), Vol. 7977, Springer, Aalborg, Denmark, July 2013 (ps, pdf)

T. Quirchmayr, M. Strembeck: On the Impact of Concurrency for the Enforcement of Entailment Constraints in Process-driven SOAs, In: Proc. of the 10th International Workshop on Security in Information Systems (WOSIS), Angers, France, July 2013 (ps, pdf, extended version)

K. Figl, J. Mendling, M. Strembeck: The Influence of Notational Deficiencies on Process Model Comprehension, In: Journal of the Association for Information Systems (JAIS), Vol. 14, No. 6, June 2013 pdf, web)

S. Schefer-Wenzl, S. Sobernig, M. Strembeck: Evaluating a UML-based Modeling Framework for Process-related Security Properties: A Qualitative Multi-Method Study, In: Proc. of the 21st European Conference on Information Systems (ECIS), Utrecht, The Netherlands, June 2013 (ps, pdf)

A. Baumgrass, M. Strembeck: Bridging the Gap between Role Mining and Role Engineering via Migration Guides, In: Information Security Technical Report (ISTR), Vol. 17, No. 4, May 2013 (doi, pdf)

S. Schefer-Wenzl, M. Strembeck: Generic Support for RBAC Break-Glass Policies in Process-Aware Information Systems, In: Proc. of the 28th ACM Symposium on Applied Computing (SAC), Coimbra, Portugal, March 2013 (ps, pdf)

B. Hoisl, S. Sobernig, M. Strembeck: Higher-Order Rewriting of Model-to-Text Templates for Integrating Domain-specific Modeling Languages, In: Proc. of the International Conference on Model-Driven Engineering and Software Development (MODELSWARD), Barcelona, Spain, February 2013 (ps, pdf)

B. Hoisl, M. Strembeck, S. Sobernig: Towards a Systematic Integration of MOF/UML-Based Domain-Specific Modeling Languages, In: Proc. of the 16th International Conference on Software Engineering and Applications (SEA), Las Vegas, NV, USA, November 2012 (ps, pdf)

S. Schefer-Wenzl, M. Strembeck: A UML Extension for Modeling Break-Glass Policies, In: Proc. of the 5th International Workshop on Enterprise Modelling and Information Systems Architectures (EMISA), Lecture Notes in Informatics (LNI), Vol. 206, Vienna, Austria, September 2012 (ps, pdf)

M. Leitner, A. Baumgrass, S. Schefer-Wenzl, S. Rinderle-Ma, M. Strembeck: A Case Study on the Suitability of Process Mining to Produce Current-State RBAC Models, In: Proc. of the Workshop on Security in Business Processes (SBP), Lecture Notes in Business Information Processing (LNBIP), Vol. 132, Springer, Tallinn, Estonia, September 2012 (ps, pdf)

A. Baumgrass, M. Strembeck: An Approach to Bridge the Gap between Role Mining and Role Engineering via Migration Guides, In: Proc. of the 7th International Conference on Availability Reliability and Security (ARES), Prague, Czech Republic, IEEE, August 2012 (ps, pdf)

A. Baumgrass, S. Schefer-Wenzl, M. Strembeck: Deriving Process-Related RBAC Models from Process Execution Histories, In: Proc. of the 4th IEEE International Workshop on Security Aspects in Processes and Services Engineering (SAPSE), Izmir, Turkey, July 2012 (ps, pdf, extended version)

B. Hoisl, S. Sobernig, S. Schefer-Wenzl, M. Strembeck, A. Baumgrass: Design Decisions for UML and MOF based Domain-specific Language Models: Some Lessons Learned, In: Proc. of the 2nd Workshop on Process-based approaches for Model-Driven Engineering (PMDE), Kgs. Lyngby, Denmark, July 2012 (ps, pdf)

B. Hoisl, M. Strembeck: A UML Extension for the Model-driven Specification of Audit Rules, In: Proc. of the 2nd International Workshop on Information Systems Security Engineering (WISSE), Lecture Notes in Business Information Processing (LNBIP), Vol. 112, Springer, Gdansk, Poland, June 2012 (ps, pdf)

S. Schefer-Wenzl, M. Strembeck: Modeling Context-Aware RBAC Models for Business Processes in Ubiquitous Computing Environments, In: Proc. of the 3rd International Conference on Mobile, Ubiquitous, and Intelligent Computing (MUSIC), Vancouver, Canada, IEEE, June 2012 (ps, pdf)

S. Schefer-Wenzl, M. Strembeck, A. Baumgrass: An Approach for Consistent Delegation in Process-Aware Information Systems, In: Proc. of the 15th International Conference on Business Information Systems (BIS), Lecture Notes in Business Information Processing (LNBIP), Vol. 117, Springer, Vilnius, Lithuania, May 2012 (ps, pdf)

J. Mendling, M. Strembeck, J. Recker: Factors of Process Model Comprehension - Findings from a Series of Experiments, In: Decision Support Systems (DSS), Vol. 53, No. 1, April 2012 (doi, pdf)

S. Sobernig, P. Gaubatz, M. Strembeck, U. Zdun: Comparing Complexity of API Designs: An Exploratory Experiment on DSL-based Framework Integration, In: Proc. of the 10th ACM International Conference on Generative Programming and Component Engineering (GPCE), Portland, Oregon, USA, October 2011 (ps, pdf)

S. Schefer, M. Strembeck, J. Mendling, A. Baumgrass: Detecting and Resolving Conflicts of Mutual-Exclusion and Binding Constraints in a Business Process Context, In: Proc. of the 19th International Conference on Cooperative Information Systems (CoopIS), Lecture Notes in Computer Science (LNCS), Vol. 7044, Springer, Crete, Greece, October 2011 (ps, pdf, extended version)

A. Baumgrass, T. Baier, J. Mendling, M. Strembeck: Conformance Checking of RBAC Policies in Process-Aware Information Systems, In: Proc. of the Workshop on Workflow Security Audit and Certification (WfSAC), Lecture Notes in Business Information Processing (LNBIP), Vol. 100, Springer, Clermont-Ferrand, France, August 2011 (ps, pdf)

S. Schefer, M. Strembeck, J. Mendling: Checking Satisfiability Aspects of Binding Constraints in a Business Process Context, In: Proc. of the Workshop on Workflow Security Audit and Certification (WfSAC), Lecture Notes in Business Information Processing (LNBIP), Vol. 100, Springer, Clermont-Ferrand, France, August 2011 (ps, pdf)

W. Hummer, P. Gaubatz, M. Strembeck, U. Zdun, S. Dustdar: An Integrated Approach for Identity and Access Management in a SOA Context, In: Proc. of the 16th ACM Symposium on Access Control Models and Technologies (SACMAT), Innsbruck, Austria, June 2011 (ps, pdf)

A. Baumgrass, M. Strembeck, S. Rinderle-Ma: Deriving Role Engineering Artifacts from Business Processes and Scenario Models, In: Proc. of the 16th ACM Symposium on Access Control Models and Technologies (SACMAT), Innsbruck, Austria, June 2011 (ps, pdf, extended version)

B. Hoisl, M. Strembeck: Modeling Support for Confidentiality and Integrity of Object Flows in Activity Models, In: Proc. of the 14th International Conference on Business Information Systems (BIS), Lecture Notes in Business Information Processing (LNBIP), Vol. 87, Springer, Poznan, Poland, June 2011 (ps, pdf, extended version)

S. Schefer, M. Strembeck: Modeling Support for Delegating Roles, Tasks, and Duties in a Process-Related RBAC Context, In: Proc. of the International Workshop on Information Systems Security Engineering (WISSE), Lecture Notes in Business Information Processing (LNBIP), Vol. 83, Springer, London, GB, June 2011 (ps, pdf)

M. Strembeck, J. Mendling: Modeling Process-related RBAC Models with Extended UML Activity Models, In: Information and Software Technology (IST), Vol. 53, No. 5, May 2011 (doi, pdf)

S. Schefer, M. Strembeck: Modeling Process-Related Duties with Extended UML Activity and Interaction Diagrams, In: Proc. of the International Workshop on Flexible Workflows in Distributed Systems, Workshops der wissenschaftlichen Konferenz Kommunikation in verteilten Systemen (WowKiVS), Electronic Communications of the EASST, Vol. 37, Kiel, Germany, March 2011, (ps, pdf, extended version)

M. Strembeck: Testing Policy-based Systems with Scenarios, In: Proc. of the 10th Conference on Software Engineering (SE 2011), Innsbruck, Austria, February 2011 (ps, pdf, extended version)

M. Strembeck, J. Mendling: Generic Algorithms for Consistency Checking of Mutual-Exclusion and Binding Constraints in a Business Process Context, In: Proc. of the 18th International Conference on Cooperative Information Systems (CoopIS), Lecture Notes in Computer Science (LNCS), Vol. 6426, Springer, Crete, Greece, October 2010 (ps, pdf, extended version)

S. Kunz, S. Evdokimov, B. Fabian, B. Stieger, M. Strembeck: Role-Based Access Control for Information Federations in the Industrial Service Sector In: Proc. of the 18th European Conference on Information Systems (ECIS), Pretoria, South Africa, June 2010 (ps, pdf)

K. Figl, J. Mendling, M. Strembeck, J. Recker: On the Cognitive Effectiveness of Routing Symbols in Process Modeling Languages, In: Proc. of the 13th International Conference on Business Information Systems (BIS), Lecture Notes in Business Information Processing (LNBIP), Vol. 47, Springer, Berlin, Germany, May 2010 (ps, pdf)

M. Strembeck: Scenario-Driven Role Engineering, In: IEEE Security & Privacy, Vol. 8, No. 1, January/February 2010 (doi, pdf)

K. Figl, J. Mendling, M. Strembeck: Towards a Usability Assessment of Process Modeling Languages, In: Proc. of the 8. GI-Workshop EPK: Geschäftsprozessmanagement mit Ereignisgesteuerten Prozessketten, Berlin, Germany, November 2009 (ps, pdf)

M. Strembeck, U. Zdun: An Approach for the Systematic Development of Domain-Specific Languages, In: Software: Practice and Experience (SP&E), Vol. 39, No. 15, October 2009 (doi, pdf)

U. Zdun, M. Strembeck: Reusable Architectural Decisions for DSL Design: Foundational Decisions in DSL Development, In: Proc. of the 14th European Conference on Pattern Languages of Programs (EuroPLoP), Irsee Monastery, Germany, July 2009 (ps, pdf)

M. Strembeck, U. Zdun: Modeling Interdependent Concern Behavior Using Extended Activity Models, In: Journal of Object Technology (JOT), Vol. 7, No. 6, July-August 2008 (doi, pdf)

J. Mendling, K. Ploesser, M. Strembeck: Specifying Separation of Duty Constraints in BPEL4People Processes, In: Proc. of the 11th International Conference on Business Information Systems (BIS), Lecture Notes in Business Information Processing (LNBIP), Vol. 7, Springer, Innsbruck, Austria, May 2008 (ps, pdf)

J. Mendling, M. Strembeck: Influence Factors of Understanding Business Process Models, In: Proc. of the 11th International Conference on Business Information Systems (BIS), Lecture Notes in Business Information Processing (LNBIP), Vol. 7, Springer, Innsbruck, Austria, May 2008 (ps, pdf)

B. Simon, K. Seirafi, A. Realfsen, M. Strembeck, G. Neumann: Evaluate - An Innovative Service for Learning Performance Monitoring in Businesses, In: Proc. of the Workshop on E-Learning for Business Needs, Innsbruck, Austria, May 2008 (ps, pdf)

G. Stermsek, M. Strembeck, G. Neumann: User Profile Refinement Using Explicit User Interest Modeling, In: Proc. of 37. Jahrestagung der Gesellschaft für Informatik (GI), INFORMATIK 2007, Lecture Notes in Informatics (LNI), Vol. 109, Bremen, Germany, September 2007 (ps, pdf)

U. Zdun, M. Strembeck, G. Neumann: Object-based and class-based composition of transitive mixins, In: Information and Software Technology (IST), Vol. 49, No. 8, August 2007 (doi, pdf)

M. Strembeck, O. Plhal: VIDIHIP - A Web Service based Integration Platform for Power Plant Control Systems, In: Proc.of the IEEE International Conference on Service-Oriented Computing and Applications (SOCA), Newport Beach, CA, USA, June 2007 (ps, pdf)

G. Stermsek, M. Strembeck, G. Neumann: A User Profile Derivation Approach based on Log-File Analysis, In: Proc.of the International Conference on Information and Knowledge Engineering (IKE), Las Vegas, NV, USA, June 2007 (ps, pdf)

U. Zdun, M.Strembeck: Modeling Composition in Dynamic Programming Environments with Model Transformations, In: Proc.of the 5th International Symposium on Software Composition (SC), Lecture Notes in Computer Science (LNCS), Vol. 4089, Vienna, Austria, March 2006 (ps, pdf)

M. Strembeck, U. Zdun: Definition of an Aspect-Oriented DSL using a Dynamic Programming Language, In: Proc.of the Workshop on Open and Dynamic Aspect Languages (ODAL), Bonn, Germany, March 2006 (ps, pdf)

U.Zdun, M. Strembeck: Modeling the Evolution of Aspect Configurations using Model Transformations, In: Proc.of the Linking Aspect Technology and Evolution Workshop (LATE), Bonn, Germany, March 2006 (ps, pdf)

M. Strembeck: A Role Engineering Tool for Role-Based Access Control, In: Proc. of the 3rd Symposium on Requirements Engineering for Information Security (SREIS), Paris, France, August 2005 (ps, pdf)

M. Strembeck: Embedding Policy Rules for Software-Based Systems in a Requirements Context, In: Proc. of the 6th IEEE International Workshop on Policies for Distributed Systems and Networks (POLICY), Stockholm, Sweden, June 2005 (ps, pdf)

M. Strembeck, U. Zdun: Scenario-based Component Testing Using Embedded Metadata, In: Proc. of the Workshop on Testing of Component-based Systems (TECOS), Lecture Notes in Informatics (LNI), Vol. 58, Erfurt, Germany, September 2004 (ps, pdf)

G. Stermsek, M. Strembeck, G. Neumann: Using Subject- and Object-Specific Attributes for Access Control in Web-based Knowledge Management Systems, In: Proc. of the Workshop on Secure Knowledge Management (SKM), Amherst, NY, USA, September 2004 (ps, pdf)

J. Mendling, M. Strembeck, G. Neumann: Extending BPEL4WS for Multiple Instantiation, In: Proc. of 34. Jahrestagung der Gesellschaft für Informatik (GI), INFORMATIK 2004, Lecture Notes in Informatics (LNI), Vol. 51, Ulm, Germany, September 2004 (ps, pdf)

M. Strembeck, G. Neumann: An Integrated Approach to Engineer and Enforce Context Constraints in RBAC Environments, In: ACM Transactions on Information and System Security (TISSEC), Vol. 7, No. 3, August 2004 (doi, pdf)

J. Mendling, M. Strembeck, G. Stermsek, G. Neumann: An Approach to Extract RBAC Models from BPEL4WS Processes, In: Proc. of the 13th IEEE International Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises (WETICE), Modena, Italy, June 2004 (ps, pdf)

J. Mendling, M. Strembeck, G. Neumann: A Motivation for Multiple Activity Instantiation in BPEL4WS Processes In: Proc. of 5th Workshop on Business Process Modeling, Development, and Support (BPMDS), Riga, Latvia, June 2004 (ps, pdf)

S. Guth, M. Strembeck: A Proposal for the Evolution of the ODRL Information Model, In: Proc. of the International Workshop on the Open Digital Rights Language (ODRL), Vienna, Austria, April 2004 (ps, pdf)

M. Strembeck: Conflict Checking of Separation of Duty Constraints in RBAC - Implementation Experiences, In: Proc. of the Conference on Software Engineering (SE2004), Innsbruck, Austria, February 2004 (ps, pdf)

S. Guth, G. Neumann, M. Strembeck: Experiences with the Enforcement of Access Rights Extracted from ODRL-based Digital Contracts, In: Proc. of the 3rd ACM Workshop on Digital Rights Management (DRM), Washington D.C., USA, October 2003 (ps, pdf)

G. Neumann, M. Strembeck: An Approach to Engineer and Enforce Context Constraints in an RBAC Environment, In: Proc. of 8th ACM Symposium on Access Control Models and Technologies (SACMAT), Como, Italy, June 2003 (ps, pdf)

S. Guth, G. Neumann, M. Strembeck: Toward a Conceptual Framework for Digital Contract Composition and Fulfillment, In: Proc. of International Workshop for Technology, Economy, Social and Legal Aspects of Virtual Goods, llmenau, Germany, May 2003 (ps, pdf)

G. Neumann, M. Strembeck, U. Zdun: Using Runtime Introspectible Metadata to Integrate Requirement Traces and Design Traces in Software Components, In: Proc. of ECOOP Workshop on Unanticipated Software Evolution (USE), Malaga, Spain, June 2002 (ps, pdf)

G. Neumann, M. Strembeck: A Scenario-driven Role Engineering Process for Functional RBAC Roles, In: Proc. of 7th ACM Symposium on Access Control Models and Technologies (SACMAT), Monterey, CA, USA, June 2002 (ps, pdf)

G. Neumann, M. Strembeck: Design and Implementation of a Flexible RBAC-Service in an Object-Oriented Scripting Language, In: Proc. of the 8th ACM Conference on Computer and Communications Security (CCS), Philadelphia, PA, USA, November 2001 (ps, pdf, presentation)

K. Pohl, M. Strembeck: Definition von Testfällen für kundenspezifische produktfamilienbasierte Anwendungen (in German), In: Proc. of Deutscher Software-Produktlinien Workshop (DSPL), Kaiserslautern, Germany, November 2000 (ps, pdf)

Open Source Projects:

• BusinessActivity LRE: the BusinessActivity library and runtime engine provides platform support for different parts of the BusinessActivities Framework.
• xoRBAC: a policy decision point and policy repository for RBAC policies.
• xoRET: a software tool for RBAC role engineering/RBAC policy engineering.