Antonio Trigo

Instituto Politécnico de Coimbra | IPC · Instituto Superior de Contabilidade e Administração de Coimbra

Se nunca programou ou está interessado em aprender C# este livro é para si. Não é necessário qualquer conhecimento prévio de uma linguagem de programação, basta estar à vontade com um computador. Tendo como filosofia o aprender fazendo, este livro propõe uma abordagem de aprendizagem passo a passo em que os conceitos são acompanhados de exemplos pr...

Software is becoming increasingly larger and complex, and companies should be aware of which technologies and platforms allow for higher productivity, that then translates into lower costs, shorter development times, and fewer required specialized resources. This article presents the results of an experiment carried out to compare the productivity...

This paper is aimed at presenting the Python implementation of the Value-Based Data Envelopment Analysis (VBDEA) method, which was designed to evaluate the efficiency of decision-making units (DMUs). This methodological framework explores the links between data envelopment analysis (DEA) and multi-criteria decision analysis (MCDA) and proposes a ne...

Portuguese programs aimed at fostering Energy Efficiency (EE) measures often rely on cost–benefit approaches only considering the use phase and neglecting other potential impacts generated. Therefore, this work suggests a novel methodological framework by combining Hybrid Input–Output Lifecycle Analysis (HIO-LCA) with the Portuguese seasonal method...

Purpose: Few studies in the literature address the success of enterprise Information Systems (IS) projects, namely focusing on how success is influenced by project management practices. This research studied the impact of ISO 21500/PMBOK processes on the success of IS projects, aiming to contribute to a better understanding of management practices...

Information technology professionals often refer to DevOps as a cultural or professional movement that presents a new approach to software delivery through collaboration between the development (Dev) and the operations (Ops) teams. It is an expanding phenomenon, but its adoption in organizations is still at an embryonic stage, requiring research to...

COVID-19, mobility, socio-social changes have transferred to the world of social media communication, purchasing activities, the use of services. Corporate social media has been created to support clients in using various services, give them the possibility of easy communication without time and local barriers. Unfortunately, they still very rarely...

The European Regional Development Fund devoted around 66 billion Euros to the financial support of innovation and productivity in European enterprises over the 2014–2020 programming period. In this framework, we assessed the implementation of the Operational Programmes dedicated to fostering research and innovation, particularly in small and medium...

Funds from the European Union that are devoted to fostering a low-carbon economy are aimed at assisting Member States and regions in implementing the required investments in energy efficiency, renewable energy, and smart distribution electricity grids, and for research and innovation in these areas. In this context, we assessed the implementation o...

One of the great challenges for football coaches is to choose the football line-up that gives more guarantees of success. Even though there are several dimensions to analyse the problem, such as the opposing team characteristics. The objective of this study is to identify, based on the players’ physiological variables collected using Global Positio...

Consciente da necessidade de refletir sobre o passado da área de Sistemas de Informação e projetar o futuro da sua educação e investigação, a Associação Portuguesa de Sistemas de Informação (APSI) decidiu promover a publicação deste livro abrangente que reúne um conjunto de contribuições sobre a investigação e a educação da disciplina em Portugal....

This paper aims to provide new insights into information systems (IS) project management success. Even though many studies found in the literature show results of software development projects, few studies address the success of IS (socio-technical) projects. Responses to an international survey, regarding 472 projects in total, showed that IS proj...

This study aims to discover and analyze the most valued factors in rural tourism. An analysis of a sample with 9,939 comments obtained from the booking platform Booking.com on stays in rural tourism establishments located in Portugal is presented. Using text mining techniques and topic modeling in order to find the most valued factors, word clouds...

As football gained popularity and importance in the modern world, it been under greater scrutiny, so the industry must have better control of the train-ing sessions, and most importantly, the football games and their outcomes. With the purpose of identify the physiological variables of the players that most con-tribute to winning a football match,...

As organizações detêm uma preocupação crescente pela adoção e melhoria contínua dos seus mecanismos de controlo interno, de forma a rentabilizar os seus recursos, melhorar os seus resultados, gerir o risco, bem como, diminuir a ocorrência de erros, fraudes e falhas. Este trabalho apresenta um estudo de caso sobre a adoção de mecanismos de controlo...

This paper presents the ISRI (Information Systems Research Indicators) Web tool, publicly and freely available at isri.sciencesphere.org. Targeting Information Systems (IS) researchers, it compiles and organizes IS adoption and use theories/models, constructs, and indicators (measuring variables) available in the scientific literature. Aiming to su...

The management of Information Systems (IS) projects occupies a prominent place in research given the need for continuously improve projects efficiency and efficacy. In the case of developing countries, this is even more important because projects success rates are typically lower than those of the so-called developed countries. Projects success is...

The online sales channels of fashion stores, like the physical stores, aim to capture and retain customers. In the case of online sales channels, such as e-commerce fashion websites, success depends on the confidence that customers have in their use and reputation, which can be assessed through customers’ intentions to convey positive opinions abou...

IT Project Management Critical Success Factors (CSFs) are the areas of an Information Technology (IT) project that are essential to its success, and that must be identified and followed throughout the life cycle of the project. The identification, definition and communication of CSFs help to ensure that the project manager and team maintain the foc...

Se nunca programou ou está interessado em aprender C# este livro é para si. Este manual não exige qualquer conhecimento prévio de uma linguagem de programação, basta estar à vontade com um computador. Tendo como filosofia o aprender fazendo, este livro propõe uma abordagem de aprendizagem passo a passo em que os conceitos são acompanhados de exempl...

É unânime o impacto das tecnologias e sistemas da informação na vida das organizações, não existindo praticamente nenhuma organização que não as utilize. Um exemplo são os sistemas ERP, tipicamente constituídos por uma base de dados central e módulos aplicacionais, como os módulos de "Contabilidade e Finanças" e de "Reporting", de suporte ao Contro...

Resumo O DevOps é frequentemente referido pelos profissionais da área das tecnologias da informação como um movimento, cultural ou profissional, que apresenta uma nova abordagem de entrega de aplicações informáticas (software), através da colaboração entre as equipas de desenvolvimento e das equipas de operações. Tem subjacente um conjunto diversif...

A crescente importância das redes sociais na nossa sociedade leva governos e instituições públicas a privilegiarem estas redes, não só, na comunicação com os seus cidadãos, mas também na perceção da opinião e grau de satisfação que os cidadãos têm sobre os serviços prestados. Recorrendo a técnicas de text mining, mais especificamente, de análise de...

Para uma organização é fundamental que os seus projetos de desenvolvimento software sejam bem-sucedidos. Contudo, estes projetos têm sido frequentemente apontados como "empreendimentos problemáticos". O presente artigo apresenta os resultados preliminares de um trabalho de investigação conduzido com o intuito de caracterizar o sucesso dos projetos...

Livro de programação

Nowadays, most organisations depend on information technologies (IT)/information systems (IS) to run their businesses achieve their goals. Knowing how to manage IT/IS is fundamental because it promotes a better use of resources and an increase in quality and productivity. The head of the IT/IS department is the chief information officer (CIO), who...

This paper presents the results of an exploratory study developed to identify the current CIO's main activities, to verify whether CIO's demographics and CIO's business context influence the perception of the importance of CIO activities and to identify CIO's main skills. The results show that managing projects, interacting with top management team...

Evaluating the success of information systems projects is a key process in project management. Even though many studies found in literature focus on various aspects of project success like, for example, the success factors, there are few studies that address the evaluation process and that present practical cases. In order to help fill this gap, th...

Over the past decades several studies aimed to rank the importance of CIO's activities. One aspect that stands out in these studies is the difficulty in finding two studies that agree on the relative importance of CIO's activities. On the one hand, this can be explained by the CIO role evolution. On the other hand, there may be certain variables th...

This article presents a reflection on the role of Business Process Management and associated technologies on supporting/evolving current Accounting Information Systems. Although traditional Accounting Information Systems fulfill the need of financial reporting, collecting data from central databases and consolidating it, so that the information can...

In an increasingly globalized and complex environment, companies are making an effort to implement systems based on Information and Communication Technologies (ICT) to improve their management and organizational performance and competitiveness. Enterprise Resource Planning (ERP) systems are increasingly present in companies. In Spain and Portugal,...

The Fluvial Ecology Laboratory at the University of Trás-os-Montes and Alto Douro (LEF-CITAB) uses the River Habitat Survey (RHS) methodology a Water Framework Directive accepted method for assessing the character and habitat quality of rivers, which involves the use of a paper questionnaire, GPS and photographic camera for the collection of data i...

Enterprises are entering into the era of the real-time economy, also called the “now economy”, which can be characterized by a substantive acceleration of business measurement, assessment and decision processes. The real-time reporting, as a phenomenon of the now economy, presents a new challenge to the Accounting Information Systems. The current l...

Health Centers have among one of their many tasks the provision of health care at home. This service is provided by teams of health professionals, usually composed of physicians and nurses belonging to the Health Centers. The scheduling of the visits is made by a health professional that groups one or more routes in order to minimize the time of te...

Information technology/information systems are currently used by almost all firms worldwide to integrate and coordinate their business processes, ranging from operational to strategic support. Among the systems adopted by firms, one can find enterprise resource planning, customer relationship management, business intelligence, and many others. This...

Real-time reporting in accounting or simply real-time accounting offers many benefits when compared to conventional periodic reporting. Traditionally, enterprises require financial or non-financial reporting based on quarterly and annual periods. Yet, the rapid change that occurs on market and society causes this periodic reporting to become quickl...

Information Systems in the past few years became a keystone of society. History shows that in some Information Systems one simple failure can lead to disproportioned economic and social damages. Initially used in structural systems, the theory of vulnerability searches for this type of failure. This theory identifies failures in which small damage...

In recent years there has been a significant reduction in the number of students who are applying to higher education, which intensifies the competition among institutions of higher education, universities and polytechnics, for attracting students. A thorough knowledge of the candidates and their preferences in terms of courses and major competitor...

Focused on the welfare of the poor and disadvantaged, philanthropic organizations involved in the distribution of food, clothing and other goods rarely have adequate devices for identifying the needs that might exist and what already exists in nearby organizations. This worsens the response to the needy and the organizations that have goods to dona...

The aim of this paper is to empirically test not only the direct effects of information and communication technology (ICT) capabilities and integrated information systems (IS) on firm performance, but also the moderating role of IS integration along the supply chain in the relationship between ICT external and capabilities and business performance....

This article reflects about current and future role of Accounting Information Systems by analysing the main responsibilities of accountants and financial professionals. While several of these responsibilities are already suitably supported by traditional technology answers, others represent challenges that do still not have appropriate responses an...

Existe um vasto conjunto de ferramentas BPM (Business Process Management), algumas baseadas em software open source, de suporte à gestão por processos, que contribuem para a qualidade de um produto ou serviço da organização. As Business Process Management Suites (BPMS) são um exemplo dessas ferramentas tecnológicas que permitem aos gestores control...

This chapter describes a simulator used by accounting students to mimic the official process of filling out a Personal Income Tax form. According to the Portuguese law, this form describes the amount of the employees' Personal Income Tax withheld within a company, which must be submitted periodically to the Portuguese Tax Administration. This proce...

As technology continues to grow as an essential component of small and large enterprises, an ever increasing demand is placed on cutting-edge designs for information systems. Sociotechnical Enterprise Information Systems Design and Integration covers multiple systems and developments in design for businesses and enterprises of all sizes. This publi...

Information Systems (IS) and Technologies assume a wide variety of roles within companies, ranging from operational to strategic support of the company. This fact puts pressure on managers, who are required to manage these investments properly. This chapter presents a study conducted with several Chief Information Officers from large Iberian compan...

This chapter is a work about the development of a model for the engineering requirement based on ontology. The development patterns are not used efficiently, especially for non-observance of the principles of requirements engineering. The overall objective of the chapter is to propose the use of an ontology based on the artifacts of software requir...

This paper describes the Simulator of Personal Income Tax retained by Portuguese companies. According to the Portuguese law, monthly and annually companies need to send the information to the Portuguese Tax Administration about the amounts of employees’ Personal Income Tax withheld. This task is made through an e-Government tool accessed by company...

The increasing focus of government institutions, such as the Tax Administration or Social Security, e-government has introduced a new paradigm that is the obligation of fulfilling obligations to these institutions through online channels. In the case of tax compliance by businesses, there is another requirement, only authorized persons, such as cha...

Aproximar o mundo empresarial do mundo académico foi sempre uma preocupação das escolas de contabilidade e gestão, particularmente do ISCAC, que se traduz na existência de Unidades Curriculares de Simulação Empresarial, que visam simular a realidade empresarial. Não obstante se utilizarem ferramentas informáticas para o registo de transações co...

People in software development teams are crucial in order to gain and retain strategic advantage inside a highly competitive market. As a result, human factors have gained attention in the software industry. Software Project Managers are decisive to achieve project success. A competent project manager is capable of solving any problem that an organ...

Risk Management in software projects has been increasingly its importance and value, being pointed as an important basis of project success. However, many projects are still carried out without giving importance to this knowledge area. This work discusses some of the main aspects of Risk Management and introduces the concept of collaborative work i...

The Internal Audit activity includes the analysis of activities and processes, which can and should be executed in a systematic and automated way through the use of Open Source Workflow Management Systems. The conducted study analyzed several Open Source Workflow Management Systems in order to find the most adequate to support the audit process and...

Nowadays, Universities and other Training Institutions need to clearly identify the Information Technology (IT) skills that companies demand from IT practitioners. This is essential not only for offering appropriate and reliable university degrees, but also to help future IT professionals on where to focus in order to achieve better job positions....

The topic of Enterprise Information Systems (EIS) is having an increasingly relevant strategic impact on global business and the world economy, and organizations are undergoing hard investments in search of the rewarding benefits of efficiency and effectiveness that these ranges of solutions promise. Organizational Integration of Enterprise Systems...

Web 2.0 and Enterprise 2.0 concepts offer a whole new set of collaborative tools that allow new approaches to market research, in order to explore continuously and ever fast-growing social and media environments. Simultaneously, the exponential growth of online Social Networks, along with a combination of computer-based tools, is contributing to th...

Information systems outsourcing is an indispensable tool in the management of information systems. The set of services contracted to outside suppliers, originally more limited to services of an operational nature, has expanded over the past two decades, and today there is a wide range of services subject to outsourcing. Among them are: the hiring o...

Information systems outsourcing is an indispensable tool in the management of information systems. The set of services contracted to outside suppliers, originally more limited to services of an operational nature, has expanded over the past two decades, and today there is a wide range of services subject to outsourcing. Among them are: the hiring o...

In the last decades simulation has been widely used for training and education. Traditionally used on military and medicine education, history shows that analyzing systems through simulation models reveal to be an interesting, safe, few-resources consuming and less disruptive with the real system. Students can experiment and test their knowledge in...

This paper presents a case study of a taxi drive company whose problem is the pick up passengers more efficiently in order to save time and fuel. The taxi company journey starts and ends in the two near by locations, which can be address as the same location for the problem solving, transforming this problem in a typical Travelling Salesman Problem...

This paper describes the VAT Simulator, a simulator that mimics the Portuguese official VAT form application. According to the Portuguese law, every month or quarters, each certified accountant should send VAT information of the companies of its responsibility to the Government, using the official VAT form application. However, it is not possible f...

Information systems outsourcing is an indispensable tool in the management of information systems. The set of services contracted to outside suppliers, originally more limited to services of an operational nature, has expanded over the past two decades, and today there is a wide range of services subject to outsourcing. Among them are: the hiring o...

Information Systems (IS) and Technologies assume a wide variety of roles within companies, ranging from operational to strategic support of the company. This fact puts pressure on managers, who are required to manage these investments properly. This chapter presents a study conducted with several Chief Information Officers from large Iberian compan...

This paper describes an enterprise simulation tool developed to improve accounting students' skills: the Enterprise Simulator. With this simulator students can learn by doing the main commercial, financial and fiscal transactions and then record them into any ERP system. By simulating this type of transactions, students can have a better understand...

Information systems outsourcing is an indispensable tool in the management of information systems. The set of services contracted to outside suppliers, originally more limited to services of an operational nature, has expanded over the past two decades, and today there is a wide range of services subject to outsourcing. Among them are: the hiring o...

Systems simulation has been widely used in the last decades in order to analyze the impact of different scenarios in several areas, and its application to information systems in no exception. Analyzing information systems through simulation models is simultaneously much more affordable; it is required a smaller amount of resources and it is less di...

Simulation in last decades has been widely used to analyze the impact of different scenarios in several areas like, for instance, health, military, business, and many others. When well used, it is an excellent tool to analyze alternative actions and to anticipate their impact, in order to rationalize the spending of resources. This paper introduces...

Nowadays, Universities and other Training Institutions need to clearly identify the Information Technology IT skills that companies demand from IT practitioners. This is essential not only for offering appropriate and reliable university degrees, but also to help future IT professionals on where to focus in order to achieve better job positions. In...

This paper analyzes the differences between Spanish and Portuguese large companies regarding the use of Information and Communication Technologies (ICT) and electronic integration with supply chain members. These differences are established in terms of the capacity of generating superior firm performance. The results show differences between both g...