Χριστόφορος Ζολώτας

Μεταδιδακτορικός Ερευνητής
Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης
Τμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών
54124, Θεσσαλονίκη
Τηλ: +30 2310 99 6365
Fax: +30 2310 99 6398
Email: czolotas (at) issel [dot] ee [dot] auth [dot] gr

Επαγγελματική Εμπειρία

11/2013 – σήμερα Βοηθός Έρευνας Τμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Ελλάδα, Ευρωπαϊκά Ερευνητικά με έμφαση στη σχεδίαση, υλοποίηση συστημάτων λογισμικού και την αυτόματη μηχανική λογισμικού με τη χρήση μοντέλων.
Προγράμματα: S-CASE, TekTrain
12/2011 – 1/2013 Προγραμματιστης Java/MATLAB για την υλοποίηση συστήματος δικτύωσης των δεδομένων τηλεμετρίας του στόλου του ΟΑΣΘ με εξωτερικά συστήματα βάσεων δεδομέων προς την εκτίμηση της κυκλοφοριακής κατάστασης στο πολεοδομικό συγκρότημα της Θεσσαλονίκης.
Πρόγραμμα:  SPEED-O

Εκπαίδευση

2013-σήμερα Εκπόνηση διδακτορικής διατριβής στο Τμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Ελλάδα. Θέμα Διδακτορικής Διατριβής: “Ανάπτυξη μηχανισμών αυτοματοποίησης των διαδικασιών λογισμικού σε περιβάλλοντα νέφους.”
2003-2013 Δίπλωμα Ηλεκτρολόγου Μηχανικού και Μηχανικού Υπολογιστών από το Τμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Ελλάδα, Διπλωματική Διατριβή: “Σημασιολογική Μηχανή Αναζήτησης Οντοτήτων Λογισμικού”
Βαθμός Πτυχίου: 8.15/10

Ερευνητικά Ενδιαφέροντα

  • Μοντελοστραφής Μηχανική Λογισμικού
  • Διαδικτυακές Υπηρεσίες REST
  • Ανάπτυξη Γλωσσών Πεδίου
  • Τεχνολογία Λογισμικού
  • Ρομποτική

Ακαδημαϊκές Δραστηριότητες

  • Συνδιδασκαλία προπτυχιακού μαθήματος Τεχνολογίας Λογισμικού (Μάρτιος 2014 – Σήμερα)

Συμμετοχές σε Εθνικούς/Διεθνείς Διαγωνισμούς

  • 2ο Συνέδριο Φοιτητών Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών (ΣΦΗΜΜΥ), Demo Session, ΕΜΠ, Αθήνα 2008
  • Διεθνής Διαγωνισμός ρομποτικής RoboCup – RoboRescue Real Robot League Suzhou, Κίνα 2008
  • Διεθνής Διαγωνισμός ρομποτικής RoboCup – RoboRescue Real Robot League Graz, Αυστρία 2009
  • 3ο Συνέδριο ΣΦΗΜΜΥ, Demo Session, ΑΠΘ, Θεσσαλονίκη 2009

Διακρίσεις

  • 1ο βραβείο Demo Session, 2ο ΣΦΗΜΜΥ, ΕΜΠ, ΑΘήνα 2008
  • Βραβείο Αριστείας & Καινοτομίας από την Επιτροπή Ερευνών του ΑΠΘ για την παρουσία στο διεθνή διαγωνισμό ρομποτικής RoboCup – RoboRescue Real Robot league Suzhou, Κίνα.
  • 1ο βραβείο Demo Session, 3ο ΣΦΗΜΜΥ, ΑΠΘ, Θεσσαλονίκη 2009

Ξένες Γλώσσες

 – Αγγλικά: Γ2
– Γερμανικά: Γ1

Δημοσιεύσεις

2019

Conference Papers

Konstantinos Panayiotou, Emmanouil Tsardoulias, Christopher Zolotas, Iason Paraskevopoulos, Alexandra Chatzicharistou, Alexandros Sahinis, Stathis Dimitriadis, Dimitra Ntzioni, Christopher Mpekos, Giannis Manousaridis, Aris Georgoulas and Andreas Symeonidis
"Ms Pacman and the Robotic Ghost: A Modern Cyber-Physical Remake of the Famous Pacman Game"
2019 Sixth International Conference on Internet of Things: Systems, Management and Security (IOTSMS), 2019 Oct

Robotics and Internet of Things (IoT) are two of the most blooming scientific areas during the last years. Robotics has gained a lot of attention in the last decades and includes several disciplines (mapping, localization, planning, control etc.), while IoT is a quite new and exciting area, where seamless data aggregation and resource utilization from heterogeneous physical objects (e.g. devices, sensor networks and robots) is defined via multi-layer architectures. Moreover, Cyber-Physical systems (CPS) share similar concepts and principles with the IoT, focused on interconnecting physical and computational resources via multi-layer architectures. The current paper joins the Robotics and CPS disciplines via an architecture where heterogeneous physical and computational elements exist (robots, web app, message broker etc.), so as to implement a cyber-physical port of the famous Pacman game, called RoboPacman.

@conference{etsardouPacman2019,
author={Konstantinos Panayiotou and Emmanouil Tsardoulias and Christopher Zolotas and Iason Paraskevopoulos and Alexandra Chatzicharistou and Alexandros Sahinis and Stathis Dimitriadis and Dimitra Ntzioni and Christopher Mpekos and Giannis Manousaridis and Aris Georgoulas and Andreas Symeonidis},
title={Ms Pacman and the Robotic Ghost: A Modern Cyber-Physical Remake of the Famous Pacman Game},
booktitle={2019 Sixth International Conference on Internet of Things: Systems, Management and Security (IOTSMS)},
year={2019},
month={10},
date={2019-10-22},
url={https://ieeexplore.ieee.org/document/8939255},
doi={https://doi.org/10.1109/IOTSMS48152.2019.8939255},
keywords={Internet of Things;Robots;computer games;cyber-physical systems},
abstract={Robotics and Internet of Things (IoT) are two of the most blooming scientific areas during the last years. Robotics has gained a lot of attention in the last decades and includes several disciplines (mapping, localization, planning, control etc.), while IoT is a quite new and exciting area, where seamless data aggregation and resource utilization from heterogeneous physical objects (e.g. devices, sensor networks and robots) is defined via multi-layer architectures. Moreover, Cyber-Physical systems (CPS) share similar concepts and principles with the IoT, focused on interconnecting physical and computational resources via multi-layer architectures. The current paper joins the Robotics and CPS disciplines via an architecture where heterogeneous physical and computational elements exist (robots, web app, message broker etc.), so as to implement a cyber-physical port of the famous Pacman game, called RoboPacman.}
}

2019

Inproceedings Papers

Konstantinos Panayiotou, Emmanouil Tsardoulias, Christopher Zolotas, Iason Paraskevopoulos, Alexandra Chatzicharistou, Alexandros Sahinis, Stathis Dimitriadis, Dimitra Ntzioni, Christopher Mpekos, Giannis Manousaridis, Aris Georgoulas and Andreas L. Symeonidis
"Ms Pacman and the Robotic Ghost: A Modern Cyber-Physical Remake of the Famous Pacman Game"
2019 Sixth International Conference on Internet of Things: Systems, Management and Security (IOTSMS), pp. 147-154, 2019 Oct

@inproceedings{panayiotou2019ms,
author={Konstantinos Panayiotou and Emmanouil Tsardoulias and Christopher Zolotas and Iason Paraskevopoulos and Alexandra Chatzicharistou and Alexandros Sahinis and Stathis Dimitriadis and Dimitra Ntzioni and Christopher Mpekos and Giannis Manousaridis and Aris Georgoulas and Andreas L. Symeonidis},
title={Ms Pacman and the Robotic Ghost: A Modern Cyber-Physical Remake of the Famous Pacman Game},
booktitle={2019 Sixth International Conference on Internet of Things: Systems, Management and Security (IOTSMS)},
pages={147-154},
editor={IEEE},
year={2019},
month={10},
date={2019-10-22},
url={https://bit.ly/33RgGyZ},
doi={https://doi.org/10.1109/IOTSMS48152.2019.8939255}
}

2018

Journal Articles

Christoforos Zolotas, Kyriakos C. Chatzidimitriou and Andreas L. Symeonidis
"RESTsec: a low-code platform for generating secure by design enterprise services"
Enterprise Information Systems, pp. 1-27, 2018 Mar

In the modern business world it is increasingly often that Enterprises opt to bring their business model online, in their effort to reach out to more end users and increase their customer base. While transitioning to the new model, enterprises consider securing their data of pivotal importance. In fact, many efforts have been introduced to automate this ‘webification’ process; however, they all fall short in some aspect: a) they either generate only the security infrastructure, assigning implementation to the developers, b) they embed mainstream, less powerful authorisation schemes, or c) they disregard the merits of the dominating REST architecture and adopt less suitable approaches. In this paper we present RESTsec, a Low-Code platform that supports rapid security requirements modelling for Enterprise Services, abiding by the state of the art ABAC authorisation scheme. RESTsec enables the developer to seamlessly embed the desired access control policy and generate the service, the security infrastructure and the code. Evaluation shows that our approach is valid and can help developers deliver secure by design enterprise services in a rapid and automated manner.

@article{2018Zolotas,
author={Christoforos Zolotas and Kyriakos C. Chatzidimitriou and Andreas L. Symeonidis},
title={RESTsec: a low-code platform for generating secure by design enterprise services},
journal={Enterprise Information Systems},
pages={1-27},
year={2018},
month={03},
date={2018-03-09},
doi={https://doi.org/10.1080/17517575.2018.1462403},
abstract={In the modern business world it is increasingly often that Enterprises opt to bring their business model online, in their effort to reach out to more end users and increase their customer base. While transitioning to the new model, enterprises consider securing their data of pivotal importance. In fact, many efforts have been introduced to automate this ‘webification’ process; however, they all fall short in some aspect: a) they either generate only the security infrastructure, assigning implementation to the developers, b) they embed mainstream, less powerful authorisation schemes, or c) they disregard the merits of the dominating REST architecture and adopt less suitable approaches. In this paper we present RESTsec, a Low-Code platform that supports rapid security requirements modelling for Enterprise Services, abiding by the state of the art ABAC authorisation scheme. RESTsec enables the developer to seamlessly embed the desired access control policy and generate the service, the security infrastructure and the code. Evaluation shows that our approach is valid and can help developers deliver secure by design enterprise services in a rapid and automated manner.}
}

2018

Conference Papers

Emmanouil G. Tsardoulias, Konstantinos L. Panayiotou, Christoforos Zolotas, Alexandros Philotheou, Anreas L. Symeonidis and Loukas Petrou
"From classical to cloud robotics: Challenges and potential"
3rd International Workshop on Microsystems, Sindos Campus, ATEI Thessaloniki, Greece, 2018 Dec

Nowadays, a rapid transition from the classical robotic systems to more modern concepts like Cloud or IoT robotics is being experienced. The current paper briefly overviews the benefits robots can have, as parts of the increasingly interconnected world.

@conference{TsardouliasMicrosystems2018,
author={Emmanouil G. Tsardoulias and Konstantinos L. Panayiotou and Christoforos Zolotas and Alexandros Philotheou and Anreas L. Symeonidis and Loukas Petrou},
title={From classical to cloud robotics: Challenges and potential},
booktitle={3rd International Workshop on Microsystems},
address={Sindos Campus, ATEI Thessaloniki, Greece},
year={2018},
month={12},
date={2018-12-01},
url={https://issel.ee.auth.gr/wp-content/uploads/2019/02/From-classical-to-cloud-robotics-Challenges-and-potential.pdf},
abstract={Nowadays, a rapid transition from the classical robotic systems to more modern concepts like Cloud or IoT robotics is being experienced. The current paper briefly overviews the benefits robots can have, as parts of the increasingly interconnected world.}
}

2016

Journal Articles

Christoforos Zolotas, Themistoklis Diamantopoulos, Kyriakos Chatzidimitriou and Andreas Symeonidis
"From requirements to source code: a Model-Driven Engineering approach for RESTful web services"
Automated Software Engineering, pp. 1-48, 2016 Sep

During the last few years, the REST architectural style has drastically changed the way web services are developed. Due to its transparent resource-oriented model, the RESTful paradigm has been incorporated into several development frameworks that allow rapid development and aspire to automate parts of the development process. However, most of the frameworks lack automation of essential web service functionality, such as authentication or database searching, while the end product is usually not fully compliant to REST. Furthermore, most frameworks rely heavily on domain specific modeling and require developers to be familiar with the employed modeling technologies. In this paper, we present a Model-Driven Engineering (MDE) engine that supports fast design and implementation of web services with advanced functionality. Our engine provides a front-end interface that allows developers to design their envisioned system through software requirements in multimodal formats. Input in the form of textual requirements and graphical storyboards is analyzed using natural language processing techniques and semantics, to semi-automatically construct the input model for the MDE engine. The engine subsequently applies model-to-model transformations to produce a RESTful, ready-to-deploy web service. The procedure is traceable, ensuring that changes in software requirements propagate to the underlying software artefacts and models. Upon assessing our methodology through a case study and measuring the effort reduction of using our tools, we conclude that our system can be effective for the fast design and implementation of web services, while it allows easy wrapping of services that have been engineered with traditional methods to the MDE realm.

@article{2016ZolotasASE,
author={Christoforos Zolotas and Themistoklis Diamantopoulos and Kyriakos Chatzidimitriou and Andreas Symeonidis},
title={From requirements to source code: a Model-Driven Engineering approach for RESTful web services},
journal={Automated Software Engineering},
pages={1-48},
year={2016},
month={09},
date={2016-09-01},
url={http://issel.ee.auth.gr/wp-content/uploads/2016/09/ReqsToCodeMDE.pdf},
doi={http://10.1007/s10515-016-0206-x},
abstract={During the last few years, the REST architectural style has drastically changed the way web services are developed. Due to its transparent resource-oriented model, the RESTful paradigm has been incorporated into several development frameworks that allow rapid development and aspire to automate parts of the development process. However, most of the frameworks lack automation of essential web service functionality, such as authentication or database searching, while the end product is usually not fully compliant to REST. Furthermore, most frameworks rely heavily on domain specific modeling and require developers to be familiar with the employed modeling technologies. In this paper, we present a Model-Driven Engineering (MDE) engine that supports fast design and implementation of web services with advanced functionality. Our engine provides a front-end interface that allows developers to design their envisioned system through software requirements in multimodal formats. Input in the form of textual requirements and graphical storyboards is analyzed using natural language processing techniques and semantics, to semi-automatically construct the input model for the MDE engine. The engine subsequently applies model-to-model transformations to produce a RESTful, ready-to-deploy web service. The procedure is traceable, ensuring that changes in software requirements propagate to the underlying software artefacts and models. Upon assessing our methodology through a case study and measuring the effort reduction of using our tools, we conclude that our system can be effective for the fast design and implementation of web services, while it allows easy wrapping of services that have been engineered with traditional methods to the MDE realm.}
}

2015

Conference Papers

Christoforos Zolotas and Andreas Symeonidis
"Towards an MDA Mechanism for RESTful Services Development"
The 18th International Conference on Model Driven Engineering Languages and Systems, Ottawa, Canada, 2015 Oct

—Automated software engineering research aspiresto lead to more consistent software, faster delivery and lowerproduction costs. Meanwhile, RESTful design is rapidly gainingmomentum towards becoming the primal software engineeringparadigm for the web, due to its simplicity and reusability. Thispaper attempts to couple the two perspectives and take the firststep towards applying the MDE paradigm to RESTful servicedevelopment at the PIM zone. A UML profile is introduced,which performs PIM meta-modeling of RESTful web servicesabiding by the third level of Richardson’s maturity model. Theprofile embeds a slight variation of the MVC design pattern tocapture the core REST qualities of a resource. The proposedprofile is followed by an indicative example that demonstrateshow to apply the concepts presented, in order to automate PIMproduction of a system according to MOF stack. Next stepsinclude the introduction of the corresponding CIM, PSM andcode production.Index Terms—Model Driven Engineering; RESTful services;UML Profiles; Meta-modeling; Automated Software Engineering

@conference{2015ZolotasICMDELS,
author={Christoforos Zolotas and Andreas Symeonidis},
title={Towards an MDA Mechanism for RESTful Services Development},
booktitle={The 18th International Conference on Model Driven Engineering Languages and Systems},
address={Ottawa, Canada},
year={2015},
month={10},
date={2015-10-02},
url={http://ceur-ws.org/Vol-1563/paper6.pdf},
slideshare={http://www.slideshare.net/isselgroup/towards-an-mda-mechanism-for-restful-services-development},
abstract={—Automated software engineering research aspiresto lead to more consistent software, faster delivery and lowerproduction costs. Meanwhile, RESTful design is rapidly gainingmomentum towards becoming the primal software engineeringparadigm for the web, due to its simplicity and reusability. Thispaper attempts to couple the two perspectives and take the firststep towards applying the MDE paradigm to RESTful servicedevelopment at the PIM zone. A UML profile is introduced,which performs PIM meta-modeling of RESTful web servicesabiding by the third level of Richardson’s maturity model. Theprofile embeds a slight variation of the MVC design pattern tocapture the core REST qualities of a resource. The proposedprofile is followed by an indicative example that demonstrateshow to apply the concepts presented, in order to automate PIMproduction of a system according to MOF stack. Next stepsinclude the introduction of the corresponding CIM, PSM andcode production.Index Terms—Model Driven Engineering; RESTful services;UML Profiles; Meta-modeling; Automated Software Engineering}
}