Department of Digital Systems, School of Technology, University of Thessaly, Larissa, Greece.

Academic subject: Analysis and Design of Systems and Projects with Emphasis on Decision Making.

General Department of Larissa, University of Thessaly, Larissa, Greece.

teaching “Principles of Software Engineering” in the Program of Studies in Computer Science.

Department of Business Administration, Technological Education Institute of Thessaly (TEI), Larissa, Greece.

Department of Business Administration, Technological Education Institute of Thessaly, Larissa, Greece.

Department of Project Management, Technological Education Institute of Larissa, Greece.

Department of Project Management, Technological Education Institute of Larissa, Greece.

Aristotle University of Thessaloniki, Department of Informatics, Thessaloniki, Greece, Post Graduate Studies (MSc in Information Systems & MSc in Informatics - Management), Responsible for the Software Project Management course.

teaching courses such as Project Planning and Management, Business Information Systems, Software Engineering, Entrepreneurship (Introduction to Entrepreneurial Spirit / Assessment of Students’ Entrepreneurship Skills and Attitudes):

i) IPAG Business School, Nice and Paris, France, ii) Siauliai State College, Siauliai, Lithuania, iii) Bulgarian Academy of Sciences, Sofia, Bulgaria, iv) University of Palermo, Palermo, Italy, v) Modern University for Business and Science, Beirut, Lebanon, vi) American University of Beirut, Beirut, Lebanon, vii) Al-Hussein Bin Talal University, Ma’an, Jordan.

Post Graduate Program (MSc) in Project and Program Management, Responsible for the Software Project Management Course, TEI of Thessaly.

Post Graduate Studies (MBA & MSc) in Management Science, Responsible for the Management Principles & Operational Contexts course, Staffordshire University – TEI of Larissa.

Post Graduate Studies (MBA & MSc) in Management Science, Responsible for the Business Research Methods course, Staffordshire University – TEI of Larissa.

Department of Pedagogy, University of Thessaly, Volos, Greece.

Department of Information Technology and Telecommunications, Technological Education Institute of Larissa, Greece.

Hellenic National Academic Recognition Information Centre (NARIC).

Entrepreneurship and Innovation Research Institute in the Research Center IASON of the University of Thessaly.

Business Administration Department Technological Education Institute (TEI) of Thessaly, Larissa, Greece.

Technological Education Institute (TEI) of Thessaly, Larissa, Greece.

Technological Research Center of Thessaly, Technological Education Institute (TEI) of Thessaly, Larissa, Greece.

in the Region of Central and Western Greece.

in the Region of Thessaly Region, Greece.

in the Technological Education Institute (TEI) of Thessaly, Larissa, Greece.

(Erasmus+ KA2, Sector Skills Alliances).

(Erasmus+ KA2 – Strategic Partnership Project, Duration: January 2018 – December 2019, http://youbrand.cku2.eu/en/).

(CHIST-ERA 2017, http://www.chistera.eu/, “Big data and process modelling for smart industry”.

(Research in Software PRocess ImprovemeNT Methodologies for Greek Small & Medium sized Software Development Enterpises) - R&D project partially funded from the European Social Fund and the Greek Ministry of Education (in the context of the ARCHIMEDES III national research programme).

(Knowledge management for software project management using ontologies and social networks) - R&D project partially funded from the European Social Fund and the Greek Ministry of Education (in the context of the ARCHIMEDES III national research programme).

(Social Media Training to Combat Unemployment Among Higher Education Graduates) - ERASMUS+ programme.

(Multilateral Project for Mushrooms Exploitation and Training).

ERASMUS TEMPUS programme.

R&D project partially funded from the European Social Fund and the Greek Ministry of Education (in the context of the ARCHIMEDES II national research programme).

Project funded by the Hellenic Open University, Greece.

Project funded by the Hellenic Secretary of Research & Technology (GSRT).

Represtantion of the Tech. Educ. Instit. Of Larissa in a Pan European Network of Universities specializing in Project Management education.

funded by the Greek Ministry of Education in the context of “Information Society” operational programme.

R&D project partially funded by the TEI of Larissa Research Committee.

Tech. Educ. Instit. Of Larissa, Greece.

R&D Project “Project Management and Simulation in Regional Operating Programme of Thessaly” funded by the Third Regional Operating Programme of Thessaly.

Project DIOSKOUROI– Human Research Network (Advanced Networking Technologies & Applications) funded by the Hellenic Secretary of Research & Technology.

Project DIEPTELO - Human Research Network (Training & Research in Software Engineering & Software Project Management) funded by the Hellenic Secretary of Research & Technology.

“Project Management Information Systems for the National Documentation Center of Greece” , Project funded by the National Documentation Center of Greece in the context of the “Information Society” operational programme.

Larissa, Greece.

ESDLab has been established at the Department of Mathematics of the University of Patras in 1992, aiming at the promotion of research and development in the field of Educational Software tools, methods and practices with the incorporation of new technologies.

Responsible for the design, development and exploitation of an integrated software development environment (tools’ chain) for real-time, safety critical, embedded software applications, which includes monitoring, schedulability analysis, safety analysis, performance analysis, reliability analysis and testing tools.

i) ESPRIT project 8906 CLEAR-Components and Libraries for Embedded Applications in Real-time (1993 -1995). Result: The project has developed a real-time, run-time product set which includes an operating system, a development environment and a simulation environment, for both low- and high-end embedded software development. End-users: RENAULT (embedded automotive real-time control applications), ZELTRON-ELECTROLUX (embedded control in white goods applications).

ii) ESPRIT project 20576 TOOLS-Tools for Design and Validation of Embedded Control Systems (1995 –1998). Result: An integrated set of tools covering the entire development cycle of real-time applications, namely: verification, system modelling and simulation, monitoring, performance evaluation and traceability. End-users: THOMSON-CSF (braking control in aircraft applications).

iii) ESPRIT project 20899 ANTI-CRASH - ANDF Technology in C for reliable safety critical hard real-time systems (1995-1997). Result: Development and industrial production of software and hardware tools focusing on the Architecture Neutral Distribution Format (ANDF) technology. The project has evaluated the performance of ANDF when it is used to retarget the language and the processor environment. End-users: THOMSON-CSF (vetronics and pantograph braking systems).

iv) ESPRIT project 23256 TotEm - Totally Emulated Embedded Systems (1996 – 1998). Result: Integration of a software environment that constituted by EOS (a highly configurable Real-Time Operating System on Windows and Solaris host platforms), LCT (a Logic Compiler Technology that allows the application developers to prove the correctness of implementation against specification), PREDICTA (a performance prediction tool that extracts features of the system under analysis by means of symbolic execution of models) and SCAN (a schedulability analysis tool that allows developers to correctly study and define the timing behaviour of their applications). End-users: THOMSON-CSF, Crouzet Automatismes (automotive, space industry, consumer electronics).

v) ESPRIT project 23920 SAFE - Safe Ada for Embedded Applications in real-time (1997-1999). Result: Contribution to the definition and the implementation of a complete development process for safety-critical software. The project emphasized on software safety, portability and reusability for embedded systems. The approach combined compilers technology, formal methods techniques and safety-schedulability analysis methods. End-users: Thomson-CSF, Crouzet Automatismes (pantograph control for TGV high-speed trains).

K. I. Papageorgiou, K. Poczeta, E. Papageorgiou, V. C. Gerogiannis & G. Stamoulis “Exploring an Ensemble of Methods that Combines Fuzzy Cognitive Maps and Neural Networks in Solving the Time Series Prediction Problem of Gas Consumption in Greece”, Algorithms, Special Issue on "Ensemble Algorithms and Their Applications", Vol. 12, Issue 11, MDPI.

M. Tsinidou, V. C. Gerogiannis & P. Fitsilis, “Evaluation of the Factors that Determine Quality in Higher Education. An Empirical Study”, Quality Assurance in Education, Emerald, Vol. 18, Iss. 3, pp. 227 - 244, 2010 (more than 360 citations in Google Scholar: https://scholar.google.com/citations?user=WFZezDoAAAAJ&hl=en , 3rd most cited paper of all times in the Quality Assurance in Education journal: https://www.emeraldinsight.com/doi/full/10.1108/09684881011058669).

V. C. Gerogiannis, “Software Requirements Engineering: State of The Art and Research Trends”. International Journal of Management and Applied Science (IJMAS), Vol. 3, Issue 9, 2017, pp. 66-71.

A. Karageorgos, E. Rapti & V. C. Gerogiannis, “A Bio-inspired Approach for Dynamic Product Bundling in Enterprise Networks”. Journal of Software (JSW), Vol. 11, No. 11, 2016, pp. 1111-1118.

G. Kakarontzas & V. C. Gerogiannis, “Handling Uncertainty during Services Ranking”. International Journal of Services Computing (ISSN 2330-4472), Vol. 4, No. 3, July-September 2016, pp. 45-57.

V. A. Maftei, V. C. Gerogiannis & E. I. Papageorgiou, “Critical Success Factors of Online Music Streaming - a Case Study of Applying the Fuzzy Cognitive Maps Method”. International Journal of Technology Marketing, Special Issue on: “Challenges and Opportunities in Marketing in the Contemporary Technological Environment”, Vol. 11, No. 3, Inderscience Publishers, 2016, pp. 276-300.

V. C. Gerogiannis, E. Rapti, A. Karageorgos & P. Fitsilis, “On using fuzzy linguistic 2-tuples for the evaluation of human resource suitability in software development tasks”. Advances in Software Engineering, Vol. 2015, Article ID 695873, 15 pages, 2015.

A. Karageorgos, E. Rapti & V. C. Gerogiannis, “Resource allocation in software projects using a bio-inspired model”. Journal of Software (JSW), Vol. 10, No. 12, December 2015, pp. 1351-1358.

V. C. Gerogiannis, P. Fitsilis, A. D. Kameas, “Evaluation of project and portfolio Management Information Systems with the use of a hybrid IFS-TOPSIS method”. Intelligent Decision Technologies Journal (IDT), IOS Press, Special issue in “Innovative Decision Systems”, Vol. 7, No. 1, 2013, pp. 91-105.

P. Fitsilis, V. C. Gerogiannis & L. Anthopoulos, “Role of Unified Modelling Language in Software Development in Greece – Results from an Exploratory Study”, IET Software, Journal of the Institute of Engineering and Technology, December 2013, pp. 143 – 153 (DOI: 10.1049/iet-sen.2013.0031).

V. C. Gerogiannis, P. Fitsilis, D. Voulgaridou, K.A. Kirytopoulos & E. Sachini, “A Case Study for Project and Portfolio Management Information System Selection: a Group AHP-Scoring Model Approach”, International Journal of Project Organisation and Management, Vol. 2, No. 4, pp. 361-381, 2010.

V. Gerogiannis & P. Fitsilis, “A Project - Based Learning Approach for Teaching ERP Concepts”, International Journal of Learning, Common Ground Publishers, Volume 12, Issue 8, 2006, pp.261-268.

V. C. Gerogiannis, A. Kameas & P. Pintelas, “Classification and Comparative Study of High-Level Petri Nets”, Journal of Systems and Software, Elsevier, Vol. 43, November 1998, pp. 133-160.

M. Tsoukarellas, V. C. Gerogiannis & K.Economides, “Systematically Testing a Real-Time Operating System”, IEEE Micro Journal, Special Issue on Embedded Control Systems, October 1995, pp. 50-60.

L. Anthopoulos, V. C. Gerogiannis & P. Fitsilis, “Enterprise Architecture for e-Strategy Standardization and Management: Lessons Learnt from Greece”. International Journal for Digital Society (IJDS), Volume 1, Issue 4, December 2010, pp. 289-297.

V. Kazantzi, N. Kazantzis & V.C. Gerogiannis, “Simulating the Effects of Risk Occurrences on a Hazardous Material Transportation Model”, Operations and Supply Chain Management: an International Journal (OSCM), Volume 4, Issue 2/3, pp. 135 - 144, May/September 2011.

V. Kazantzi, N. Kazantzis & V.C. Gerogiannis, “Risk Informed Optimization of a Hazardous Material Multi - Periodic Transportation Model”, Journal of Loss Prevention in the Process Industries, Elsevier, Vol. 24, No. 6, 2011, pp. 767-773 (selected article from the papers presented in the 2010 “Process Safety Center International Symposium - Beyond Regulatory Compliance, Making Safety Second Nature”, Texas A&M University, Texas, USA, 26-28 October, 2010).

P. Trivellas, V. C. Gerogiannis, S. Svarna, “Exploring Workplace Implications of Emotional Intelligence (WLEIS) in Hospitals: Job Satisfaction and Turnover Intentions”. Procedia - Social and Behavioral Sciences, Elsevier, Vol. 73, 2013, pp. 701 – 709 (selected article from the papers presented in the 2nd International Conference on Integrated Information, IC-ININFO 2012, Budapest, Hungary).

P. Fitsilis, V. C. Gerogiannis, L. Anthopoulos, “Ontologies for Software Project Management: a Review”. Journal of Software Engineering and Applications, December 2014, 7, Scientific Research, http://www.scirp.org/journal/jsea, pp. 1096-1110.

P. Fitsilis, V. C. Gerogiannis, L. Anthopoulos, “Ontologies for Project Management: Survey”. International Journal of Information Processing and Management, November 2014, Vol. 5, Issue 4, pp. 1-7.

G.I. Zervakis, G. Venturella, C.M. Denchev, P.T. Fitsilis, V.C. Gerogiannis, S. Papaefthimiou, J. Georgi, A. Saitta, E. Polemis, T.T. Denchev, B. Assyov & M.L. Gargano, “Identification and sustainable exploitation of wild edible mushrooms in rural areas (Mycoticon - Leonardo Da Vinci project): Development of an innovative training package to meet educational and income-generating demands in South Europe and to improve the use of mushrooms as high-value food”. Journal of Biological Research, 88(1), pp.10-11, January 2015.

P. Fitsilis, V.C. Gerogiannis, & L. Anthopoulos, “Software Project Team Selection based on Enterprise Social Networks”. In “Industrial Engineering, Management Science and Applications”, Vol. 349, Series of Lecture Notes in Electrical Engineering, pp 375-384, Springer, 2015.

V. Kazantzi, V. C. Gerogiannis & L. Anthopoulos, “Multi-Criteria Decision Making for Supplier Selection in Biomass Supply Networks for Bioenergy Production”. Chapter 18 in Handbook of “Outsourcing of Supply Chain Operations and Logistics Services”, P. Folinas (Ed.), IGI Global Publishers, Hershey, PA: Information Science Reference, 2013, pp. 313-343.

V.C. Gerogiannis, P. Fitsilis & A.D. Kameas, “Using a Combined Intuitionistic Fuzzy Set-TOPSIS Method for Evaluating Project and Portfolio Management Information Systems”. In “Artificial Intelligence Applications and Innovations”, SPRINGER, 7th IFIP WG 12.5 International Conference, Part II. IFIP Publications 364 Springer 2011, pp. 67-81.

P. Fitsilis, L. Anthopoulos & V. C. Gerogiannis, “An Evaluation Framework for E-Government Projects”. In “Citizens and E-Government: Evaluating Policy and Management”, C. Reddick (Ed.), IGI Global Publishers, Hershey, PA: Information Science Reference, 2010, pp. 69-90.

L. Anthopoulos, V. C. Gerogiannis & P. Fitsilis, “Measuring E-Government Adoption by Governments: the Greek Case”. In “Comparative E-government: An Examination of E-Government Across Countries”, C. Reddick (Ed.), Springer Integrated Series in Information Systems (http://www.springer.com/series/6157), Volume 25, Part 2, pp. 353-370, 2010.

M. Tsoukarellas, V. C. Gerogiannis & K.Economides, “Systematically Testing a Real-Time Operating System”. In “A Practical Approach to Real-Time Systems: Selected Readings”, P.A. Laplante (Ed.), IEEE Computer Society, 2000, pp. 279-289.

D. Settas, Ι. Stamelos & V. C. Gerogiannis, “Antipatterns, Bayes Networks and Multi Criteria Decision Analysis in Software Project Management" (in Greek). Chapter in Collective Volume “Decision Systems with Multiple Criteria”. Ν. Matsatsinis & Κ. Zopounidis (Eds.), Kleidarithmos Publications, 2007, pp. 67-76.

V. C. Gerogiannis, A. Kameas & P. Pintelas, “Real-MFG: A High-Level Timed Petri Net Model Focusing on the Integration of Schedulability and Fault-Tolerance”. In “Reliability, Quality & Safety of Software-Intensive Systems”, 1997, IFIP, Chapman&Hall, pp. 263-268.

V. C. Gerogiannis & M.Tsoukarellas, “SAFELAND: a Fault-Tree based Environment to Software Safety Analysis”. In “Technologies for the Information Society, Development and Opportunities”, Amsterdam, Netherlands, 1998, J. Y. Roger et al. (Eds.), IOS Press, pp. 779-786.

V. C. Gerogiannis & M. Tsoukarellas, “Using SCAN to Analyze the Schedulability of a Real-Time Application”. In “Embedded Microprocessor Systems”, Amsterdam, Netherlands, 1996, C. Muller-Schloer et al. (Eds.), IOS Press, pp. 344-353.

V. C. Gerogiannis, E. Tsoni & C.Born, “Prioritizing Software Features based on Stakeholders Satisfaction/Dissatisfaction and their Hesitation”. 4th International Conference on Algorithms, Computing and Systems (ICACS 2020), Rabat, Morocco, January 6-8, 2020, Proceedings published by the Association for Computing Machinery (ACM) (under review).

V. C. Gerogiannis, P. Fitsilis, G. Kakarontzas & C. Borne, Handling Vagueness and Subjectivity in Requirements Prioritization”. Proceedings of the 22nd Panhellenic Conference on Informatics (PCI 2018), University of Western Attica, Athens, Greece, November 29- December 1, 2018, Proceedings published by the International Conf. Proceedings Series of the Association for Computing Machinery (ACM), pp. 150-155.

V. C. Gerogiannis, “Prioritize Collectively Software Requirements based on Stakeholders’ Evaluations” (Conference Keynote Speech). Proceedings of 2018 International Conference on Software Engineering and Information Management (ICSIM 2018), Casablanca, Morocco, January, 2018, Proceedings published by the International Conf. Proceedings Series of the Association for Computing Machinery (ACM).

P. Fitsilis, P. Tsoutsa & V. C. Gerogiannis, “Industry 4.0: Required Personnel Competences”. Proceedings of the 3rd International Scientific Conference, Industry 4.0, 18-21/6/2018, Varna, Bulgaria, pp. 5-8.

V. C. Gerogiannis & G. Tzikas, “Using Fuzzy Linguistic 2-Tuples to Collectively Prioritize Software Requirements based on Stakeholders’ Evaluation”. Proceedings of the 21st Panhellenic Conference on Informatics (PCI 2017), Larissa, Greece, ACM International Conf. Proceedings Series of the Association for Computing Machinery (ACM).

V. C. Gerogiannis, “Software Requirements Engineering: State of The Art and Research Trends”. Proceedings of the International Conference on Advances in Business Management and Information Technologies, Kiev, Ukraine, 17th-18th July 2017, pp. 1-6.

E. Kouzari, V. C. Gerogiannis, I. Stamelos, G. Kakarontzas, “Critical Success Factors and Barriers for Lightweight Software Process Improvement in Agile Development - A Literature Review”. Proceedings of the ICSOFT 2015, 10th International Joint conference on Software Technologies, Colmar, France, 20-22/7/2015, pp. 151-159.

D. Tselios, P. Ipsilandis & V. C. Gerogiannis, “A Dynamic Programming Approach for Solving the IFM based Project Scheduling Problem”. Proceedings of the 2015 41st Euromicro Conference on Software Engineering and Advanced Applications (EUROMICRO / SEAA 2015), IEEE Computer Society, Madeira, Portugal, August 26-28, 2015, pp. 127 -134.

A. Karageorgos, E. Rapti, V. C. Gerogiannis. “Socially-related Human Resource Allocation in Software Projects”. Proceedings of the Work in Progress Session of the 41st Euromicro Conference on Software Engineering and Advanced Applications (EUROMICRO / SEAA 2015), ISBN 978-3-902457-44-8, Madeira, Portugal, August 26-28, 2015.

P. Fitsilis, V. C. Gerogiannis & L. Anthopoulos, “Mining for Project Management Skills in Social Enterprise Networks”. Proceedings of the Work in Progress Session of the 41st Euromicro Conference on Software Engineering and Advanced Applications (EUROMICRO / SEAA 2015), ISBN 978-3-902457-44-8, Madeira, Portugal, August 26-28, 2015.

A. Karageorgos, E. Rapti & V. C. Gerogiannis, “Resource Allocation in Software Projects Using a Bio-inspired Model”. Proceedings of the 2015 7th International Conference on Software Technology and Engineering (ICSTE 2015), September 19-20, 2015, Hong Kong, American Society for Research (ASR).

E. Rapti, A. Karageorgos, V. C. Gerogiannis, “Decentralised Service Composition using Potential Fields in Internet of Things Applications”. Procedia Computer Science, Elsevier, Vol. 52, 2015, Proceedings of the 6th International Conference on Ambient Systems, Networks and Technologies (ANT-2015), the 5th International Conference on Sustainable Energy Information Technology (SEIT-2015), pp. 700-706.

D. Tselios, P. Ipsilandis & V. C. Gerogiannis, “Α Dynamic Programming Algorithm for Optimizing the Financial Return of Software Projects”. Proceedings of the 6th International Conference on Information, Intelligence, Systems and Applications (IISA 2015), IEEE Computer Society, Corfu, Greece, 6-8/7/2015, pp. 1-6.

G. Kakarontzas & V. C. Gerogiannis, “An Intuitionistic Fuzzy Approach for Ranking Web Services under Evaluation Uncertainty”. Proceedings of the SCC 2015 IEEE Conference on Services Computing, New York, IEEE Computer Society, USA, 27/6-3/7/2015, pp. 742-745.

V. C. Gerogiannis, E. Rapti, A. Karageorgos & P. Fitsilis, “A Fuzzy Linguistic Approach for Human Resource Evaluation and Selection in Software Projects”. Proceedings of the 5th International Conference on Industrial Engineering & Operations Management (IEOM 2015), IEEE Computer Society, Dubai, UAE, 3-5/3/2015, pp. 1-9 (BEST PAPER AWARD IN THE PROJECT MANAGEMENT TRACK OF THE CONFERENCE).

V. C. Gerogiannis, E. Rapti, A. Karageorgos & P. Fitsilis, “Human Resource Assessment in Software Development Projects Using Fuzzy Linguistic 2-Tuples”. Proceedings of the 2nd IEEE International Conference on Artificial Intelligence, Modelling and Simulation (AIMS 2014), IEEE Computer Society, Madrid, Spain, 18-20/11/2014, pp. 217-222.

P. Ipsilandis, D. Tselios & V. C. Gerogiannis, “Consolidation of the IFM with the JSSP through Neural Networks as Model for Software Projects”. Proceedings of the 2nd IEEE International Conference on Artificial Intelligence, Modelling and Simulation (AIMS 2014), IEEE Computer Society, Madrid, Spain, 18-20/11/2014, pp.33-38.

G. Kakarontzas, V. C. Gerogiannis, S. Bibi & I. Stamelos, “Estrangement between Classes: Test Coverage-based Assessment of Coupling Strength between Pairs of Classes”. Proceedings of the 9th IEEE International Conference of the QUATIC 2014, Quality of Information and Communications Technology, IEEE Computer Society, Guimaraes, Portugal, 23-26/9/14, pp. 48-57.

S. Bibi, V. C. Gerogiannis, G. Kakarontzas & I. Stamelos, “Ontology based Bayesian Software Process Improvement”. Proceedings of the ICSOFT 2014, 9th International Joint conference on Software Technologies, Vienna, Austria, 29-31/8/2014, pp. 568-575.

V. C. Gerogiannis, V. A. Maftei & E. I. Papageorgiou, “Critical Success Factors of Online Music Streaming Services-a Case Study of Applying the Fuzzy Cognitive Maps Method”. Proceedings of the International Conference on Contemporary Marketing Issues, ICCMI 2014, 18-20 June 2014, Athens, Greece, pp. 1077-1084.

P. Fitsilis, V.C. Gerogiannis & L. Anthopoulos L. “Project Knowledge Management based on Social Networks”, Proceedings of the 3rd International Conference on Education and Management Innovation, ICEMI 2014, Hong Kong, February 2014.

P. Fitsilis, V. C. Gerogiannis & L. Anthopoulos, “Project Team Selection based on Social Networks”. Proceedings of the 2014 IEEE Technology Management Conference, ITMC 2014, IEEE Computer Society, June 2014, Chicago, USA, pp. 1-4.

V. C. Gerogiannis, A. Karageorgos, L. Liu & C. Tjortjis, “Personalised Fuzzy Recommendation for High Involvement Products”. Proceedings of the 2013 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2013, IEEE Computer Society, Manchester, UK, 2013, pp. 4885-4890.

K. D. Tsilika & V. C. Gerogiannis, “A Simulation Approach to Evaluate the Quality and the Performance of a Software Requirements Engineering Process”. Proceedings of the 5th International Conference on Experiments/Process/System Modeling/Simulation/Optimization, 5th IC-EpsMsO, Athens, Greece, 3-6 July, 2013.

V.C. Gerogiannis, V. Kazantzi & L. Anthopoulos, “A Hybrid Method for Evaluating Biomass Suppliers – Use of Intuitionistic Fuzzy Sets and Multi-Periodic Optimization”. Proceedings of the “Artificial Intelligence Applications and Innovations”, SPRINGER, 7th IFIP WG 12.5 International Conference, AIAI 2012, Chalkidiki, Greece, pp. 217-223.

V. C. Gerogiannis & V. Kazantzi, “Selecting Suppliers for Biomass Supply Networks with an IFS - Multi Periodic Optimization Method”. Proceedings of the 2012 International Conference on Industrial Engineering and Operations Management, IEOM 2012, Istanbul, Turkey, 2012, pp. 1381-1390.

V. C. Gerogiannis, S. Papadopoulou & E. Papageorgiou, “A Fuzzy Cognitive Map for Identifying User Satisfaction from Smartphones”. Proceedings of the 16th Panhellenic Conference on Informatics (PCI 2012), University of Piraeus, Greece, IEEE Computer Society, 2012, pp. 156-161.

C. Kafxitsas, V. C. Gerogiannis, V. Kazantzi, “Application of Fuzzy Cognitive Maps for Analyzing Risks in Maintenance Projects of Hellenic Air Force” (in Greek). Proceedings of the 23rd Conference of the Hellenic Society of Operational Research, September, 12-14 2012, National Technical University, Athens Greece.

M. Mandila & V. C. Gerogiannis, “The Effects of Music on Customer Behaviour and Satisfaction in the Region of Larissa-The Cases of Two Coffee Bars”. Proceedings of the International Conference on Contemporary Marketing Issues, ICCMI 2012, Thessaloniki, Greece, pp. 290-294.

V. C. Gerogiannis, S. Papadopoulou & E. I. Papageorgiou, “Identifying Factors of Customer Satisfaction from Smartphones: A Fuzzy Cognitive Map Approach”. Proceedings of the International Conference on Contemporary Marketing Issues, ICCMI 2012, Thessaloniki, Greece, pp. 270-276.

G. Kakarontzas, V. C. Gerogiannis, I. Stamelos, & P. Katsaros, “Elastic Component Characterization with respect to Quality Properties: An intuitionistic fuzzy-based approach”. Proceedings of the 15th Panhellenic Conference on Informatics (PCI 2011), Kastoria, Greece, IEEE Computer Society, 2011, pp. 270-274 (BEST PAPER AWARD OF THE CONFERENCE).

L. Anthopoulos, V. C. Gerogiannis & P. Fitsilis, “Supporting the Solution Selection for a Digital City with a Fuzzy-based Approach”. Proceedings of the International Conference on Knowledge Management and Information Sharing (KMIS 2011), Paris, France, 26-29 October 2011, pp. 91-93.

V.C. Gerogiannis, D. Liovas, “A Fuzzy-based Approach for Supporting the Evaluation and Selection of Teaching Methods in a Distance Learning Program” (in Greek). Proceedings of the 3rd Conference on Informatics in Education, CIE 2011, University of Piraeus, 8-9/10/2011, Greece.

P. Trivellas, V. C. Gerogiannis & S. Svarna, “The Impact of Emotional Intelligence on Job Outcomes and Turnover Intention in Health Care”. Proceedings of the International Conference on Integrated Information, IC-ININFO 2011, Advances on Information Processing and Management (AIPM), 1, 29/9 - 3/10, 2011, Kos, Greece, pp. 356–360.

D. Liovas, V.C. Gerogiannis, K. Diplas & E. Kostadima High-School Teachers' “Perceptions on Internet Vulnerabilities for Students” (in Greek), 2nd Panhellenic Converence on ICT Usage in Educational Processes, Patras, Greece, April, 28-30, 2011, pp. 467-474.

L. Anthopoulos, V. C. Gerogiannis, P. Fitsilis & A. Kameas, “Training in Profiling, Negotiation and Crisis Management - Using an Immersive and Adaptive Environment", CSEDU 2010, 2nd International Conference on Computer Supported Education, 7-10 April, 2010, Valencia, Spain, Vol. I, pp. 347-352.

P. Fitsilis, V. C. Gerogiannis, L. Anthopoulos & I. Savvas, “Supporting the Requirements Prioritization Process Using Social Network Analysis Techniques”. Proceedings of the WETICE 2010 19th IEEE International Workshops on Enabling Technologies: Infrastructures for Collaborative Enterprises, IEEE Computer Society, Larissa, Greece, June 28-30, 2010, pp. 110-115.

L. Anthopoulos, V. C. Gerogiannis, P. Fitsilis, “The Impact of Enterprise Architecture’s Absence in e-Government Development: the Greek Case”. Proceedings of the International Conference on Information Society (i-Society 2010), IEEE Computer Society, London, 28th- 30th of June, 2010, pp. 122-127.

P. Fitsilis, V. C. Gerogiannis, L. Anthopoulos, A. Kameas, “Using Social Network Analysis for Software Project Management”. Proceedings of the 2009 International Conference on Current Trends in Information Technology (CTIT’09), IEEE Computer Society, Dubai, 8th – 9th of December, 2009, pp. 1-6.

P. Fitsilis, L. Anthopoulos & V. C. Gerogiannis, “Assessment Frameworks of E-Government Projects: a Comparison”. Proceedings of the PCI 2009, 13th Panhellenic Conference on Informatics, 10-12 September 2009, Corfu, Greece, pp.101-112.

V. C. Gerogiannis, V. Kazantzi & K. Mitrakopoulos, “A Multi-Perspective Approach to Evaluate Sustainability and Competitiveness of Renewable Energy Sources”. Proceedings of the 10th International Conference "Protection and Restoration of the Environment" (PRE10), 5-9 July 2010, Corfu, Greece.

V. Kazantzi, N. Kazantzis & V. C. Gerogiannis, “Simulating the Effects of Risk Occurrences on a Hazardous Material Transportation Model”. Proceedings of the 1st International Olympus Conference on Supply Chains, Katerini, Greece, 1-2 October 2010.

V. C. Gerogiannis, P. Fitsilis, G. Kakarontzas & A. Tzikas “Involving Stakeholders in the Selection of a Project and Portfolio Management Tool”. Proceedings of the 21st Conference of the Hellenic Society of Operational Research, Athens, Greece, 28-30 May 2009, pp. 498-514.

P. Fitsilis & V. C. Gerogiannis, "Management Information Systems for Programmes and Project Frameworks". Proceedings of the PM-04-4th SCPM & 1st IPMA/MedNet Conference, “Project Management Advances, Training & Certification in the Mediterranean”, May 2008, Chios, Greece, pp. 440-445.

V.C. Gerogiannis, A. Mavridis, P.G. Ipsilandis & I. Stamelos, "Evaluating Incremental/Iterative Software Projects by Valuing Investment/Implementation Risks", Proceedings of the 20th Conference of the Hellenic Society of Operational Research, Spetses, Greece, 19-21 July 2008, pp. 473-484.

V. C. Gerogiannis, A. Mavridis, P.G. Ipsilandis & I. Stamelos, "Evaluating Schedules of Iterative /Incremental Software Projects from a Real Options Perspective". Proceedings of the 3rd ICSOFT Conference (International Conference on Software and Data Technologies), July 2008, Porto, Portugal, pp. 224-233.

V. C. Gerogiannis & P. G. Ipsilandis, “Multi Objective Analysis for Timeboxing Models of Software Development”. Proceedings of the 2nd ICSOFT Conference (International Conference on Software and Data Technologies), July 2007, Barcelona, Spain, pp.145-153.

V. C. Gerogiannis, P. Ipsilandis & I. Kostis, “Multi Criteria Optimization in Software Development Projects with Iterations and Timeboxing” (in Greek). Proceedings of the 19th Conference of the Hellenic Society of Operational Research, Arta, Greece 21-23 June 2007.

D. Settas, S. Bibi, P. Sfetsos, I. Stamelos & V. C. Gerogiannis, “Using Bayesian Belief Networks to Model Software Project Management Antipatterns”. Proceedings of the Fourth International Conference on Software Engineering, Research, Management and Applications, SERA 2006, 9-11 August 2006, Seattle, Washington, USA, IEEE Computer Society, 2006, pp. 117-124.

D. Settas, I. Stamelos & V. C. Gerogiannis, “Using MCDA and Bayesian Belief Networks to Aid Decision Making Based on Software Project Management Antipatterns”. Proceedings of the 4th Workshop of the Hellenic Multi Criteria Decision Analysis Group, 6th Special Conference of the Hellenic Society of Operational Research, Larissa, Greece, 27-28/9/2006.

V. C. Gerogiannis, G. Kakarontzas and I. Stamelos, “A Unified Approach for Software Process Representation and Analysis”. Proceedings of the 1st ICSOFT Conference (International Conference on Software and Data Technologies), 11-14 September 2006, Setubal, Portugal, pp.127-132.

V. C. Gerogiannis & P. G. Ipsilandis, “The MISSION-SPM Approach for Representing and Analyzing Software Projects”. Proceedings of the 20th IPMA World Congress on Project Management, International Project Management Association, 15-17 October 2006, Sanghai, China.

V. C. Gerogiannis & I. Kostis, “Representation of a Programme Proposal Evaluation Processes Using the Unified Modelling Language”. Proceedings of the 18th Conference of the Hellenic Society of Operational Research, Kozani, Greece, 15-17 June.

V. C. Gerogiannis & P. Fitsilis, “Project-Based Learning as a Teaching Method for ERP Systems”. Proceedings of the 3rd International Conference on Enterprise Systems and Accounting (ICESAcc’06), 26-27 June 2006, Santorini, Greece, pp. 185-196.

V. C. Gerogiannis, “Object-Oriented Structures in Software Development Projects”. Proceedings of the 1st ICEC & IPMA Global Congress on Project Management and 5th World Congress on Cost Engineering, Project Management & Quantity Surveying, International Project Management Association, Ljubljana, Slovenia, April 23 - 26, 2006.

V. C. Gerogiannis & I. Kostis, “A Business Process Modelling Approach to Assist Management of a Regional Operating Programme”. Proceedings of the 1st ICEC & IPMA Global Congress on Project Management and 5th World Congress on Cost Engineering, Project Management & Quantity Surveying, International Project Management Association, Ljubljana, Slovenia, April 23 - 26, 2006.

P. Fitsilis, V. C. Gerogiannis & A. Kameas, “Extracting and Maintaining Project Knowledge Using Ontologies”. Proceedings of the 8th International Conference on Enterprise Information Systems, Workshop for "Technologies for Collaborative Business Processes", 23-27 May 2006, Paphos, Cyprus, pp. 72-83.

V. C. Gerogiannis, P. Fitsilis & A. Fanikos, “Applying Project Based Learning in an ERP Course” (in Greek). Proceedings of the 3rd Panhellenic Conference “Didactic of Informatics”, Korinthos, Greece, 2005.

V. C. Gerogiannis, “Object-Oriented Modeling and Formal Specification of Generic Project Structures” (in Greek). Proceedings of the 17th Conference of the Hellenic Society of Operational Research, Patra, Greece, June 2005, pp. 391-402.

P. G. Ipsilandis, K. Sirakoulis, S. Polyzos, V. C. Gerogiannis, “A DSS based Methodology for Programme Management”. Proceedings of the International Project Management Association (IPMA) - World Congress on Project Management, International Project Management Association, Budapest, June 19-20, 2004.

V. C. Gerogiannis, K. Sirakoulis & P. G. Ipsilandis, "Business Process Simulation to Support Project Management of a Regional Operating Programme". Proceedings of the International Project Management Association (IPMA) - World Congress on Project Management, International Project Management Association, Budapest, June 19-20, 2004.

V. C. Gerogiannis, K. Syrakoulis & P. Ipsilantis, “Simulation of Proposal Evaluation Activities in a Regional Operational Programme”. Proceedings of the 8th Conference on Systemics, Cybernetics and Informatics (SCI 2004), Orlando, Florida, USA, July 18-21, 2004, pp. 399-403.

K. Syrakoulis, P. Ipsilantis & V. C. Gerogiannis, “Factors Affecting Project Management (PM) Applicability in Greece”. Proceedings of the 3rd Scientific Conference on Project Management, 2004, Thessaloniki, Greece, pp. 217-222.

V. C. Gerogiannis, V. Kazantzi & K. Mitrakopoulos, “Evaluating the Potential Benefits from Alternative Renewable Energy Sources: a Multi-Perspective Approach”. Proceedings of the 5th Scientific International Conference on Project Management, PM-05, “Advancing Project Management for the 2st Century”, 29-31 May 2010, Heraklion, Crete, Greece.

V. C. Gerogiannis & P. Fitsilis, “Systematic Application of Project based Learning in Teaching a Graduate Course in ICT" (in Greek). Proceedings of the 2nd Conference with International Participation "Didactics of Informatics", University of Thessaly, Volos, Greece, 2004, pp. 212-220.

A. Kastor, K. Sirakoulis & V. C. Gerogiannis, “ Project Scheduling Problems with Resource Constraints: Recent Developments & Algorithms” (in Greek), Proceedings of the 16th Conference of the Hellenic Society of Operational Research, Larissa, Greece, 25-27/9/2003, pp. 15-26.

C. Hartonas, V. C. Gerogiannis, I. Savvas & G. Kakarontzas, “Towards Team Orientation in Agent Design: Social Plan Execution”. E-proceedings of SSGRR’03s Conference, Scuola Superiore G Reiss Romoli, L’Aquila, Italy, July 27 - August 4, 2003.

V.C. Gerogiannis, I. Caragiannis & M. Tsoukarellas, “A General Framework for Applying Safety Analysis to Safety Critical Real-Time Applications Using Fault Trees”. Proceedings of the 9th EUROMICRO Workshop on Real-Time Systems, IEEE Computer Society, Toledo, Spain, June 1997, pp. 168-175.

V. C. Gerogiannis, A. Kameas & P. Pintelas, “An Ιntelligent Τutoring System for the Yourdon Real-Time Systems Development Methodology”. Proceedings of the 1st International Conference on Computers and Advanced Technologies in Education (CATE 96), Cairo, Egypt, March 18-20, 1996, pp 287-299.

V. C. Gerogiannis, A. Kameas & P. Pintelas, “On the Integration of High-level Timed Petri Nets with Schedulability Analysis Methods”. Proceedings of the 3rd Hellenic European Research on Mathematics and Informatics Conference (HERMIS96), Athens, Hellas, September 1996, pp. 703-712.

V. C. Gerogiannis & M.Tsoukarellas, “SAT-a Schedulability Analysis Tool for Real-Time Applications”. Proceedings of the 7th EUROMICRO Workshop on Real-Time Systems, Odense, Denmark, June 14-16, 1995, IEEE Computer Society, pp. 155-161.

A. Kameas, V. C. Gerogiannis, K. Diplas & P. Pintelas, “Encapsulating Multiple Perspectives in Interaction Specification”. Proceedings of the 20th EUROMICRO Conference, Liverpool, UK, September 5-8, 1994, IEEE Computer Society, pp. 463-469.

P. Fitsilis, V. C. Gerogiannis, A. Kameas & G. Pavlides, “Producing Relational Database Schemata from an Object-Oriented Design”. Proceedings of the 20th EUROMICRO Conference, Liverpool, UK, September 5-8, 1994, IEEE Computer Society, pp. 251-257.

V. C. Gerogiannis, D. Giakovis, P. Pintelas, A. Kameas, “Expert Systems in Education” (in Greek). Proceedings of the 1st Panhellenic Conf. with International Participation on Didactics of Mathematics & Informatics in Education, Ioannina, Greece, October 1993, pp. 231-252.

“Object Oriented Analysis and Design with the Unified Modeling Language - UML” (in Greek), Kleidarithmos Publishing Company, Greece, 2005.

“Practical Guide in Entrepreneurship” (in Greek), Kleidarithmos Publishing Company, Greece, 2009.

Editor of the translated in the Greek edition of the “Fundamentals of Database Management Systems”, Gillenson, Mark, ISBN: 9789925563142, 2019, Broken Hill Publishing Company.

V. C. Gerogiannis, “Computer Science Education as Pathway to Innovation”, Invited Keynote Speech, 17th Conference of Hellenic Physicists Union, March 15 – 18, 2018, Thessaloniki, Greece.

V. C. Gerogiannis, “The Contribution of Green ICT to the Environmental Protection”. 1st Panhellenic Conference on: Climate Change, Karditsa, Greece, June 9-10, 2017.

G.I. Zervakis, G. Venturella, C.M. Denchev, P.T. Fitsilis, V.C. Gerogiannis, S. Papaefthimiou, J. Georgi, A. Saitta, E. Polemis, T.T. Denchev, B. Assyov & M.L. Gargano, “Identification and sustainable exploitation of wild edible mushrooms in rural areas (Mycoticon, LdV-ToI) - LEONARDO DA VINCI project. Journal of Biological Research, 88(1), pp.10-11, January 2015.

V. C. Gerogiannis, “Fuzzy Cognitive Maps for Software Requirements Prioritization: the SPRINT SMEs Approach”, 26th European Conference on Operational Research (EURO/INFORMS 2013), Rome, Italy, 1 -4 July 2013.

V. C. Gerogiannis, “SPRINT SMEs: a fuzzy linguistic 2-tuple recommendation approach for allocating human resources in software projects”, 20th Conference of the International Federation of Operational Research Societies, Barcelona, Spain, 13-18 July, 2014.

V. C. Gerogiannis & D. Tselios, “A Fuzzy Linguistic Approach for Software Requirements Prioritization”, 27th European Conference on Operational Research (EURO 2015), Glasgow, UK, 12 -15 July 2015.

V. C. Gerogiannis, K. Syrakoulis, P. Ipsilantis & P.Fitsilis, “Management of Proposal Evaluation Activities in a Regional Operational Programme with Simulation”. Proceedings of the EURO XX - 20th Conference on Operational Research. Rhodes, July 4-7, 2004.

P. Fitsilis & V.C. Gerogiannis, “Service Level Agreements (SLA): a Tool for the Management of Electronic Services”. Proceedings of the EURO XX - 20th Conference on Operational Research. Rhodes, July 4-7, 2004.

V. C. Gerogiannis, K. Syrakoulis & P. Ipsilantis, “Representation and Analysis of Business Processes: Emphasis on Workflows Time Management”. EURO/INFORMS Joint International Conference, Istanbul, July 6-10, 2003.

V. C. Gerogiannis, A. Kameas & P. Pintelas, “TeachReal: An Intelligent System for Training in a Methodology for the Development of Real-Time Applications”. Proceedings of the 1st Conference of the Technical Chamber of Engineers in “Information Society”, Athens 4-6 December, 1995, pp. 150.

“A Primary in Personal Computers and Introduction to Internet Services”, Univ. of Thessaly Editions, Volos, Greece, 2002.

V. C. Gerogiannis, C.Diplas, A.Kameas & P.Pintelas, “Petri Nets and High Level Petri Nets: Formalism, Properties, Analysis and Applications”, Technical Report, TR-95-01, January 1995, Dept. of Mathematics, University of Patras.

V. C. Gerogiannis, A.Kameas & P.Pintelas, “Classification and Categorisation of High Level Petri Nets”. Technical Report, TR-96-01, January 1996, Dept.of Mathematics, University of Patras.

A. Kameas, V. C. Gerogiannis, C. Diplas & P. Pintelas, “IMFG: a Formal Model for the Specification of Interactive Dialogue”. Technical Report, TR-96-02, May 1996, Dept.of Mathematics, University of Patras.