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Publications

Publications by CSE

2022

Towards an Accessibility Evaluation of eLearning Tools in Emerging 3D Virtual Environments Like Metaverse: Taking Advantage of Acquired Knowledge in Moodle and Second Life

Authors
Cruz, A; Carvalho, D; Rocha, T; Martins, P;

Publication
TECHNOLOGY AND INNOVATION IN LEARNING, TEACHING AND EDUCATION, TECH-EDU 2022

Abstract
Second Life (SL), a widely used Three-Dimensional Virtual World (3DVW), is being used as a tool for eLearning because of its interaction capabilities. On the other hand, accessibility is growing as a requirement for eLearning software tools, mainly because it can be an important factor for the learning process success by the impaired. In this paper we evaluate the accessibility of SL under WCAG 2.0/2.1 principles, and compare it with Moodle, which is a widely used web-based eLearning tool. We found that neither Moodle nor SL complies with accessibility under WCAG 2.0/2.1 rules, but SL does present itself as more accessible than Moodle. Moreover, WCAG 2.0/2.1 has several requirements specific for web pages, although they do not apply to 3DVWs. In this study, we intent to give a step forward towards evaluating emerging 3D virtual environments, like Metaverse, in the context of accessibility in the eLearning tools.

2022

Teaching HCI Engineering: Four Case Studies

Authors
Caffiau, S; Campos, JC; Martinie, C; Nigay, L; Palanque, P; Spano, LD;

Publication
SENSE, FEEL, DESIGN, INTERACT 2021

Abstract
The paper presents the work carried out at the HCI Engineering Education workshop, organised by IFIP working groups 2.7/13.4 and 13.1. It describes four case studies of projects and exercises used in Human-Computer Interaction Engineering courses. We propose a common framework for presenting the case studies and describe the four case studies in detail. We then draw conclusions on the differences between the presented case studies that highlight the diversity and multidisciplinary aspects to be taught in a Human-Computer Interaction Engineering course. As future work, we plan to create a repository of case studies as a resource for teachers.

2022

Proceedings of the 6th International Conference on the Art, Science, and Engineering of Programming, Programming 2022, Porto, Portugal, March 21-25, 2022

Authors
Aguiar, A; Guerra, E; Chiba, S; Boix, EG;

Publication
Programming

Abstract

2022

Poster: Students' Usability Evaluation of the FGPE Gamified Programming Learning Environment

Authors
Swacha, J; Miernik, F; Ignasiak, MS; Montella, R; De Vita, CG; Mellone, G; Queirós, R; Paiva, JC; Leal, JP; Kosta, S;

Publication
Information Systems Development: Artificial Intelligence for Information Systems Development and Operations (ISD2022 Proceedings), Cluj-Napoca, Romania, 31 August - 2 September 2022.

Abstract

2022

Data Type Inference for Logic Programming

Authors
Barbosa, J; Florido, M; Costa, VS;

Publication
LOGIC-BASED PROGRAM SYNTHESIS AND TRANSFORMATION (LOPSTR 2021)

Abstract
In this paper we present a new static data type inference algorithm for logic programming. Without the need for declaring types for predicates, our algorithm is able to automatically assign types to predicates which, in most cases, correspond to the data types processed by their intended meaning. The algorithm is also able to infer types given data type definitions similar to data definitions in Haskell and, in this case, the inferred types are more informative, in general. We present the type inference algorithm, prove it is decidable and sound with respect to a type system, and, finally, we evaluate our approach on example programs that deal with different data structures.

2022

Prioritizing barriers for the adoption of Industry 4.0 technologies

Authors
Senna, PP; Ferreira, LMDF; Barros, AC; Roca, JB; Magalhaes, V;

Publication
COMPUTERS & INDUSTRIAL ENGINEERING

Abstract
While Industry 4.0 promises large technological improvements, firms face multiple challenges in its adoption. Current literature has made significant efforts to identify the barriers which are common to most companies but fails to identify their interrelationships and their implications for practitioners. We use interpretive structural modelling (ISM) methodology to identify these barriers and their interrelationships, combined with matrix impact of cross multiplication applied to classification (MICMAC) analysis to identify the root barriers, in the context of the Portuguese manufacturing industry. We categorize these barriers using the Technology -Organization-Environment framework. We conclude that barriers related to standardization and lack of off -the-shelf solutions are considered root barriers. Our results differ from other studies that regard barriers related to legal and contractual uncertainty with the highest driving power and lowest dependence power. Also, we find that organizational barriers have the highest dependency and lowest driving power, contradicting studies on the topic. We provide recommendations for managers and policymakers in three areas: Standardization Dissemination, Infrastructure Development, and Digital Strategy.

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