System Level Simulation and Radio Resource Management for Distributed Antenna Systems with Cognitive Radio and Multi-Cell Cooperation

4th International Conference on Future Generation Communication Technologies (FGCT 2015), Luton, United Kingdom.

Autonomous guided vehicles applied to industrial engineering and management studies

This article presents a framework to an Industrial Engineering and Management Science course from School of Management and Industrial Studies using Autonomous Ground Vehicles (AGV) to supply materials to a production line as an experimental setup for the students to acquire knowledge in the production robotics area. The students must be capable to understand and put into good use several concepts that will be of utmost importance in their professional life such as critical decisions regarding the study, development and implementation of a production line. The main focus is a production line using AGVs, where the students are required to address several topics such as: sensors actuators, controllers and an high level management and optimization software. The presented framework brings to the robotics teaching community methodologies that allow students from different backgrounds, that normally don’t experiment with the robotics concepts in practice due to the big gap between theory and practice, to go straight to ”making” robotics. Our aim was to suppress the minimum start point level thus allowing any student to fully experience robotics with little background knowledge.

Gestão do conhecimento e cultura organizacional: barreiras e facilitadores

Este trabalho incide sobre a gestão do conhecimento e cultura organizacional, as suas barreiras os seus facilitadores na Parque Escolar E.P.E. Este estudo teve por base o método quadripolar. Várias foram as atividades ao longo deste trabalho, inicialmente foi recolhida a documentação interna, nomeadamente diplomas legais, regulamentos, manuais de procedimentos, manuais de formações internas, entre outros documentos, que serviram de base ao reconhecimento da instituição, a sua evolução estrutural e de funcionamento. Para identificar as barreiras e os facilitadores na recuperação da informação nos três principais meios para o efeito: arquivo físico, file system e aplicações informáticas foram aplicados inquéritos aos produtores/ utilizadores de informação da Parque Escolar, E.P.E. Com base neste estudo foi possível identificar qual o recurso de recuperação de informação que traz mais dificuldades na sua utilização, se existem documentos exclusivos em papel ou exclusivos em formato digital, se os mesmos são recuperáveis com facilidade. Foi possível averiguar se os colaboradores da Parque Escolar, E.P.E. consideram os documentos que constam no Arquivo Físico mais fidedignos do que os documentos em formato digital guardados no file system ou nas aplicações informáticas. Em relação às aplicações informáticas foi ainda possível averiguar se os colaboradores consideram uteis as suas atualizações, ou se demonstram alguma resistência à mudança, e se consideram que tiveram o acompanhamento necessário para compreender e aplicar as alterações. Com este estudo esperamos ter contribuído para dar uma maior visibilidade à temática da gestão do conhecimento e como a cultura organizacional pode influenciar, criando barreiras ou facilitadores.

Teaching accounting and management through business simulation

Everyday accounting and management teachers face the challenge of creating learning environments that motivate students. This chapter describes the Business Simulation (BS) experience that has taken place at the Polytechnic Institute of Porto, Institute of Accounting and Administration (IPP/ISCAP). The chapter presents students’ perceptions about the course and the teaching/learning approach. The results show that pedagogical methods used (competency-oriented), generic competencies (cooperation and group work), and interpersonal skills (organisational and communication skills) are relevant for future accounting professionals. In addition, positive remarks and possible constraints based on observation, staff meetings, and past research are reported. The chapter concludes with some recommendations from the project implementation

Implementação do Sistema de Gestão de Qualidade NP EN ISO 9001:2008

Com as dificuldades económicas que se fazem sentir nos últimos anos, tanto em Portugal como no resto do mundo, em qualquer área de negócio, a qualidade tornou-se um dos fatores de sucesso. Com um mercado cada vez com mais concorrência, os clientes procuram frequentemente a melhor qualidade do produto ou do serviço da empresa. Para isso as empresas cada vez mais apostam em fornecer um produto de qualidade através de um sistema da qualidade bem delineado, bem gerido e certificado. O presente trabalho que foi desenvolvido nesta dissertação de Mestrado consistiu na conceção e acompanhamento da Implementação do Sistema de Gestão da Qualidade (SGQ) segundo a norma NP EN ISO 9001:2008 realizada numa indústria de componentes de calçado, designada NEWCOMP, Componentes para Calçado, LDA. (NCP), localizada em S. João da Madeira. Será uma ferramenta bastante útil e estratégica para a empresa a certificação, com inúmeras vantagens e benefícios para a sua imagem. As principais razões que levaram a empresa a interessar-se pela certificação do SGQ foi, principalmente, a melhoria da qualidade dos seus produtos, satisfação dos clientes e alcançar novos mercados. A documentação elaborada do SGQ inclui a política e objetivos da qualidade, esquemas dos principais processos, manual de funções entre outros documentos considerados necessários, para utilização de todas as partes envolvidas.

Maturity models in the hospital information systems management initial research

Os modelos de maturidade são instrumentos facilitadores da gestão das organizações, incluindo a gestão da sua função sistemas de informação, não sendo exceção as organizações hospitalares. Neste artigo apresenta-se uma investigação inicial que visa o desenvolvimento de um abrangente modelo de maturidade para a gestão dos sistemas de informação hospitalares. O desenvolvimento deste modelo justifica-se porque os modelos de maturidade atuais no domínio da gestão dos sistemas informação hospitalares ainda se encontram numa fase embrionária de desenvolvimento, sobretudo porque são pouco detalhados, não disponibilizam ferramentas para determinação da maturidade e não apresentam as características dos estágios de maturidade estruturadas por diferentes fatores de influência.

Passive Fault-Tolerance Management in Component-based Embedded Systems

It is imperative to accept that failures can and will occur, even in meticulously designed distributed systems, and design proper measures to counter those failures. Passive replication minimises resource consumption by only activating redundant replicas in case of failures, as typically providing and applying state updates is less resource demanding than requesting execution. However, most existing solutions for passive fault tolerance are usually designed and configured at design time, explicitly and statically identifying the most critical components and their number of replicas, lacking the needed flexibility to handle the runtime dynamics of distributed component-based embedded systems. This paper proposes a cost-effective adaptive fault tolerance solution with a significant lower overhead compared to a strict active redundancy-based approach, achieving a high error coverage with the minimum amount of redundancy. The activation of passive replicas is coordinated through a feedback-based coordination model that reduces the complexity of the needed interactions among components until a new collective global service solution is determined, improving the overall maintainability and robustness of the system.

Access and information behaviour of European Documentation Centres users in Portugal and Spain: a comparative study

The aim of this study was to undertake a comparative analysis of the practices and information behaviour of European information users who visit information units specialising in European information in Portugal and Spain. The study used a quantitative methodology based on a questionnaire containing closed questions and one open question. The questions covered the general sociological profile of the respondents and their use of European Document Centres, in addition to analysing aspects associated with information behaviour relating to European themes. The study therefore examined data on the preferred means and sources for accessing European information, types of documents and the subjects investigated most. The use of European databases and the Internet to access material on Europe was also studied, together with the reasons which users considered made it easy or difficult to access European information, and the aspects they valued most in accessing this information. The questionnaire was administered in European Document Centres in 2008 and 2010.

O processo de Bolonha e a inevitável mudança na área da Ciência da Informação

São descritos os princípios fundamentais da Declaração de Bolonha e algumas alterações que ela pressupõe. Evoca-se a história da formação dita BAD, em Portugal, destacando-se o aparecimento das primeiras licenciaturas nacionais, dentre as quais a de Ciências e Tecnologias da Documentação e Informação (CTDI) da Escola Superior de Estudos Industriais e de Gestão do Instituto Politécnico do Porto, demonstrando-se o modo como foi feita a adequação da referida licenciatura de CTDI, ao abrigo de Bolonha, e sublinhando-se, no novo modelo de ensinoaprendizagem, o protagonismo, a autonomia e a responsabilização dos alunos. Caracteriza-se a actual licenciatura multidisciplinar, de banda larga, referindo-se as competências que um licenciado deve adquirir, tendo em conta a necessidade do surgimento de um novo perfil para os actuais Profissionais da Informação.

ISO 9001 Quality Management Systems through the Lens of Organizational Culture

Both managers and scholars have convictions about the organizational approaches that best support organizational performance of the respective organizations and its Quality Management Systems. After a literature review of ISO 9001 Quality Management Systems (including the changes introduced by the 2015 edition), Organizational Culture theories are addressed and input from a CEO´s focus group was gathered. The importance of organizational culture for the success of Quality Management Systems and the achievement of the organizational desired results is highlighted. The article advances a proposal to analyze ISO 9001 International Standard through the lens of organizational culture theories identifying a stronger open systems approach (influence of the environment, dynamic perspective, need for survival) of the 2015 ISO 9001 edition when compared with the 2008 one. This provides additional knowledge both to scholars and practitioners for a better understanding of the culture issues that can maximize ISO 9001 Quality Management Systems 2015 edition contributions to organizational enduring success.

Influence of Firms’ Environmental Management and Community Involvement Programs in their Employees and in the Community

To assure enduring success, firms need to generate economic value with respect for the environment and social value. They also need to be aware of the needs and expectations of relevant stakeholders and incorporate them in their business strategies and programs. These challenges imply that engineers should take into consideration societal, health and safety,environmental and commercial issues in their professional activity. This investigation accesses the influence of firms’ environmental management programs and community involvement programs on their own employees and in the community, with a focus on small and medium companies. Based on a quantitative research, the findings suggest that firms that invest both in environmental management programs and in community involvement programs have a higher involvement of their own employees with the community, while at the same time receiving more feedback (positive, but also negative) from the community, stressing the need to pay special attention to their communication policies.

Impact of Supplier Management Strategies on the Organizational Performance of ISO 9001 Certified Organizations

Purpose: The purpose of this article is to discuss the impact of Supplier orientation and the resulting Supply Chain Management (SCM) approach, on the organizational performance of ISO 9001 Quality Management Systems certified organizations. Methodology/Approach: Following a literature review, a full structural conceptual model was proposed. An online survey was administered to managers of Portuguese organizations with certified ISO 9001 Quality Management Systems. Descriptive Statistics and Structural Model Equations were used to validate the proposed conceptual model. Findings: There are positive relationships between Organization Strategy and Supplier Orientation, between Supplier Orientation and Stakeholders Satisfaction, and between Stakeholders Satisfaction and Organizational Performance Orientation, supporting ISO 9001:2015. These findings provide insights that supplier orientation, mediated by stakeholder satisfaction, is an essential tool for organizational competitive sustainable advantage. Research Limitation/implication: The analysis was based on managers of ISO 9001 certified organizations perceptions, so additional studies with actual data and longitudinal studies should be useful for further validation. Originality/Value of paper: The importance of the overall organizational ecosystem is highlighted with potential impact on the more than 1 Million ISO 9001 organizations certified worldwide and in their suppliers.

Forest management: different criteria – equal sustainability

From the forest management perspective, many definitions have been proposed for the concept of forest sustainability. Despite this apparent diversity, most of them converge on the same aspects. In this work we developed a comparative approach of two distinct forest management methodologies used in Europe, more precisely in Slovenia and in Portugal. Although in each case study differences in vegetation, climate and pedological characteristics are evident, we were able to show some peculiar aspects of both the Slovenian and the Portuguese examples. This study also dealt with the evolution of the term sustainability in the last decades and how it played an important role for forest management options.

Configuração de sistema de monitorização

O presente trabalho enquadra-se na área das redes de computadores, fazendo referência aos protocolos e ao conjunto de equipamentos e softwares necessários para a administração, controlo e monitorização desse tipo de infra-estruturas. Para a gestão de uma rede de dados, é essencial dispor de conhecimentos e documentação de nível técnico para representar da forma mais fiel possível a configuração da rede, seguindo passo a passo a interligação entre equipamentos existentes e oferecendo assim uma visão o mais fidedigna possível das instalações. O protocolo SNMP é utilizado em larga escala sendo praticamente um standard para a administração de redes baseadas na tecnologia TCP/IP. Este protocolo define a comunicação entre um administrador e um agente, estabelecendo o formato e o significado das mensagens trocadas entre ambos. Tem a capacidade de suportar produtos de diferentes fabricantes, permitindo ao administrador manter uma base de dados com informações relevantes da monitorização de vários equipamentos, que pode ser consultada e analisada por softwares NMS concebidos especialmente para a gestão de redes de computadores. O trabalho apresentado nesta dissertação teve como objectivo utilizar uma ferramenta NMS, para fazer a monitorização e a gestão da infra-estrutura de comunicações de forma que permitisse conhecer em tempo real o estado dos elementos de rede, ajudar no diagnóstico de possíveis problemas, instalados pela Nonius nos diversos navios da frota Douro Azul. O software NMS escolhido utiliza as potencialidades do protocolo SNMP para adquirir dados de monitorização de equipamentos de rede presentes na rede, bem como monitorizar redes remotas.

PIASA: A power and interference aware resource management strategy for heterogeneous workloads in cloud data centers

Cloud data centers have been progressively adopted in different scenarios, as reflected in the execution of heterogeneous applications with diverse workloads and diverse quality of service (QoS) requirements. Virtual machine (VM) technology eases resource management in physical servers and helps cloud providers achieve goals such as optimization of energy consumption. However, the performance of an application running inside a VM is not guaranteed due to the interference among co-hosted workloads sharing the same physical resources. Moreover, the different types of co-hosted applications with diverse QoS requirements as well as the dynamic behavior of the cloud makes efficient provisioning of resources even more difficult and a challenging problem in cloud data centers. In this paper, we address the problem of resource allocation within a data center that runs different types of application workloads, particularly CPU- and network-intensive applications. To address these challenges, we propose an interference- and power-aware management mechanism that combines a performance deviation estimator and a scheduling algorithm to guide the resource allocation in virtualized environments. We conduct simulations by injecting synthetic workloads whose characteristics follow the last version of the Google Cloud tracelogs. The results indicate that our performance-enforcing strategy is able to fulfill contracted SLAs of real-world environments while reducing energy costs by as much as 21%.