We worked hard, we played harder!

As you know, last November PACAS attended the SESAR Innovation Days 2017 with a Tutorial session on “Participatory architectural change management in Air Traffic Management system.

The first part of the Tutorial provided an overview of the participatory change management process, emphasizing the importance of active stakeholder participation and describing the two main support tools, i.e. gamification for stakeholder engagement, and automated reasoning techniques for handling complexity. In the second part, we introduced the PACAS approach, expressly created for architectural change management in ATM systems, and described an ATM example case study dealing with the Sectorless change issue. Finally, we concluded with a demo of the framework.

The Tutorial was a success! Many SIDs attendees participated in the session, leading to a lot of interactions with the platform. Application of the platform to the ATM domain, in particular, raised much interest amongst the audience.

At the beginning of December, PACAS also held its final validation workshop at the University of Trento. The workshop involved our Advisory Board, which digitally engaged with the platform, experiencing all of its features:

o Gamification
o Multi-modelling
o Automated reasoning
o Participatory management process

This thorough interaction generated lots of feedback that PACAS will include in its next deliverables.

PACAS tutorial at SIDs 2017

In the framework of the next SESAR Innovation Days, to be held at the University of Belgrade (Serbia), PACAS organises the tutorial session “Participatory architectural change management in Air Traffic Management system. The session will be held on Wednesday, 29th of November 2017 (h. 14:30-16:30). Participation is free and open but, due to space constraints, registration is required!


The Tutorial

Air Traffic Management (ATM) systems are complex systems of systems. Understanding all possible consequences of a design decision in an ATM system is a challenge due to the complexity of ATM systems and the existence of tight interdependencies within the ATM architecture. Knowing the implications of change(s) over the whole system is crucial to support decision-making, while making sure that the ATM system does not suffer from any issues with respect to functionality, safety, security, performance, cost efficiency, or other desired characteristics of a well-functioning ATM system. Given that decision-making involves the consideration of more high-level objectives, the change management process should involve multiple ATM domain stakeholders, one for each given objective, in order to explore a vast space of alternatives and agreeing on optimal solutions. It becomes, thus, crucial the active participation of stakeholders. However, given the variety of experts, their different areas of expertise, as well as their geographical distribution, participatory change management requires user engagement and tools to support and facilitate the work of experts along their interaction.

To address the first concern, in recent years, gamification is broadly used as a tool to engage participation with the help of elements, such as leader-boards or challenges between users. On the other hand, a multi-perspective, model-based approach provides important benefits in that:

1. it allows analyzing individual perspectives without the need of a holistic representation;

2. it handles complexity through automated reasoning techniques in a transparent way to find optimal solutions as a trade-off among different objectives.

We provide an overview of the participatory change management process, emphasizing the importance of active stakeholder participation. We describe the two main support tools, i.e. gamification for stakeholder engagement, and automated reasoning techniques for handling complexity.

Focus on: Participatory process, Gamification & Automated reasoning techniques

We introduce the PACAS approach, expressly created for architectural change management in ATM systems. We briefly describe an ATM example case study dealing with the Sectorless change issue, and conclude with a demo of the framework.

Focus on: ATM case study & Demo

We are looking forward to meeting you in Belgrade!

PACAS @MoDRE’17 workshop

PACAS members F. Başak Aydemir and Fabiano Dalpiaz presented the intelligent cross-view alignment method developed for the PACAS platform at the 2017 edition of the Model Driven Requirements Engineering Workshop (MoDRE’17) that is co-located with the 25th IEEE International Requirements Engineering Conference (RE 2017).

PACAS at the MoDRE 2017 Workshop

The paper presents the architecture and the inner workings of a web service that supports modelers in collaborative, multi-concern modelling settings.
The service extracts and analyzes the natural language text from models, and provides suggestions to the modellers based on what has been modelled in the other models included in the same project.
The motivation of the work comes from the change management processes in European air traffic management, where experts with different expertise from different countries collaborate with each other in order to analyze solution proposals from different aspects, such as safety and security, in order to make the best decision among different solution candidates. The main goal of the service is to support alignment in such settings, that is, to help modellers cover similar, if not the same concepts from the domain.

The presentation provoked a lively discussion within the audience. The audience suggested that the same approach can be applied to software development processes to manage models produced during the model-driven development. Possibilities for future work such as the application of advanced natural language processing libraries to improve the analysis of the natural language text extracted from the models were also discussed.

The pre-print of the paper is available here. You can also contact the authors for additional details via Twitter: @aydemirfb and @FabianoDalpiaz.

PACAS Members F. Basak Aydemir and Fabiano Dalpiaz attended the MoDRE Workshop, co-located with the Requirements Engineering Conference

Happy Summer!

PACAS project is currently enjoying its well-earned holidays and wishes you a happy summer time! We will be back again in September, with lots of news.


The project will be at the Model-Driven Requirements Engineering (MoDRE) Workshop, to be held in Lisbon, Portugal, on the 4th of September 2017, where it will present a paper titled Towards Aligning Multi-Concern Models via NLP.

Secondly, PACAS will submit a paper focusing on platform requirements​ to the Requirements Engineering: Foundation for Software Quality (RefSQ 2018) conference, to be held in Utrecht, The Netherlands, 19-22 March 2018.

The project will also take part in the 7th SESAR Innovation Days (SIDs) hosted by University of Belgrade, Serbia, 28-30 November 2017, with a paper and possibly a tutorial. The paper will present the main project results, focusing on ATM​.​

​In addition, following our participation in the ICISSP last February, PACAS has been invited to submit a project presentation to be published in the European Project Space book, along with information about the other projects presented at the conference. The book will be published by SCITEPRESS and will be made available at its Digital Library.

Finally, the project will hold its final validation workshop in the 1st week of December.


More info will be available soon. To be sure to receive our updates, keep following us also on Twitter and LinkedIn!

PACAS at the IEEE RCIS 2017 conference

PACAS’s paper Gamification Solutions for Software Acceptance was accepted to the IEEE RCIS 2017.

The Eleventh IEEE International Conference on Research Challenges in Information Science (RCIS)  will be held 10-12 May 2017 in Brighton (UK), and PACAS will take part in the event to present the paper.

Gamification is a powerful paradigm and a set of best practices used to motivate people carrying out a variety of ICT–mediated tasks. Designing gamification solutions and applying them to a given ICT system is a complex and expensive process (in time, competences and money) as software engineers have to cope with heterogeneous stakeholder requirements on one hand, and Acceptance Requirements on the other, that together ensure effective user participation and a high level of system utilization. As such, gamification solutions require significant analysis and design as well as suitable supporting tools and techniques.
In this work, we compare concepts, tools and techniques for gamification design drawn from Software Engineering and Human and Organizational Behaviors. We conduct a comparison by applying both techniques to the specific Meeting Scheduling exemplar used extensively in the Requirements Engineering literature.

Click to read the full paper Gamification Solutions for Software Acceptance: A Comparative Study of Requirements Engineering and Organizational Behavior Techniques or click on the banner below to know more on the conference.

Second validation workshop

On the 4th of April, 2017 the Consortium gathered in Rome for the 2nd Validation workshop, aimed at redefining both PACAS participatory platform and also the process for implementing the use case. Thanks to the active involvement of the Advisory Board members, the team also focussed on identifying and thoroughly discussing gamification and automated reasoning elements.

Feedback given by the Advisory Board will also be included in the next project deliverables, currently under preparation:

D2.3 “Second major release of the platform and guidelines”
D4.2 “First release of the reasoning proof-of-concept”

Keep following us for updates!

Hidden figures: PACAS @World ATM Congress!

PACAS participated in the World ATM Congress (WAC), held in Madrid, from 7 to 9 March 2017. PACAS was invited to the public workshop on the “SESAR 2020 Exploratory Research: Human Factors supporting Automation in ATM”. The workshop presented different SESAR Exploratory Research projects analysing human factors issues in highly automated ATC environments, and proposing solutions to mitigate potential adverse effects.

Martina Ragosta provided a presentation on the project, describing its objectives, preliminary results and next activities.

The event represented a great opportunity for close interactions with manufacturers, operators and all other stakeholders that may be interested in the topics of automation and human performance. We thank all speakers and participants for the valuable exchange of information and also for creating a fruitful spirit of cooperation!

The World ATM Congress is the reference international platform for the global civil and commercial ATM industry, hosting the most important stakeholders of the ATM field, including ANSPs, regulatory agencies and the major international industries of the civil aviation to discuss the future trends and developments of air traffic management. It combines the large-scale exhibition with demonstration sessions and world-class conferences and workshops, organized by SESAR JU, CANSO and ATCA.

PACAS at the International Conference on Information Systems Security and Privacy

PACAS will take part in the ICISSP 2017, the 3rd International Conference on Information Systems Security and Privacy to be held in Porto, Portugal on the 19-21st of February, 2017.

The project will bring a new poster to illustrate PACAS to the audience. Follow us to know more on our participation in the ICISSP 2017!

PACAS will be at the World ATM Congress 2017

PACAS will be at the next World ATM Congress 2017, taking place in Madrid, 7-9 March 2017.


World ATM Congress brings together the entire global air traffic management (ATM) community to discuss the latest ATM trends and developments. In such context, PACAS will take part into a public workshop on the SESAR 2020 Exploratory Research: Human Factors supporting Automation in ATM, to be held on the 09th of March at FABEC Theatre.

The workshop will present different approaches to analysing human factors in highly automated ATC environments and proposing solutions to address potential adverse effects as well. The workshop aims at:

  • Offering an overview of the progress made in the exploration of the automation and human factors field;
  • Sharing information on the latest state of the art in the exploratory research on automation;
  • Enabling cooperation between the different projects by identifying synergies and complementarities among them;
  • Identifying further developments in automation to serve as a reference for the exploratory research programme.


The event is oriented to all the ATM professionals interested in the effects of automation on the human performance. Participation is free and open to everyone willing to join the workshop.


Projects involved in the workshop


In order to achieve the workshop’s goals, it is essential that projects dealing with Human factors in automation and under several topics present their results. Therefore, the event includes:

  • Five projects on Automation, robotics and autonomy. They will present their research on the effects of automation on human factors (AUTOPACE, TACO, AGENT, STRESS, MINIMA).
  • In addition, two projects from the topic High-performing airport operations, presenting its human factors assessment on augmented reality application (RETINA) and the exploration of key multimodal stimuli to enhance the sense of presence experience by ATCOs in remote towers (MOTO).
  • Finally, a project within the Innovative ATM architecture. It will present how the ATM system could appropriately implement the achievements the project identified in automation (PACAS).


Visit the World ATM Congress website to know more.

We’re back from SESAR Innovation Days

We’re glad to have been part of the SESAR Innovation Days held 8-10th of November in Delft.

Indeed, SIDs have seen a mix of mature and new research projects collaboratively and openly discussing their achievements, not only during the technical paper but also in the poster sessions. Therefore, both moments have provided an ideal forum for networking. As a result, SIDs have been a proficient opportunity for us to share progress and disseminate our preliminary results. If you wish to know more on the SESAR Innovation Days and on the projects that took part in it, visit SIDs website.

The picture below shows our overview poster as displayed at SIDS. The poster describes PACAS’s preliminary validation results.
PACAS project's poster at SIDS Sesar Innovation Days