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Prof. Helena Navas
FCT-Faculdade de Ciências e Tecnologia, Nova de Lisboa

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0 Lean Applications
0 Lean Business Processes
0 Metrology
0 Problem Solving

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Conference paper
Published: 17 June 2021 in Recent Advances in Computational Mechanics and Simulations
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Maintenance management and the existence of maintenance management systems are fundamental challenges for companies subject to the increased competitiveness imposed by modern societies. This type of management is complex, requiring systematic approaches where it is essential to coordinate the different interdisciplinary aspects of maintenance in public and/ or private organisations. It is crucial to seek continuous improvements and balance their benefit and cost to maximise the positive contribution of maintenance to overall profitability and sustainable expansion. This article presents a study on improving management systems and computerisation of a private organisation’s maintenance activities. This company is within the market segment of service provision in the area of laboratory testing. In this area, there is a lack of studies regarding maintenance management. The Maintenance Management proposal developed in this work integrated the company’s Management Systems focused on the Quality Management vision. LEAN philosophy was used for the diagnosis and identification of existing problems. And a management model was developed to allow the company to improve maintenance activities, maintenance management and control it, thus increasing its efficiency and effectiveness. The Maintenance Management proposal is based on the Computerized Maintenance Management System. With this study, it was concluded that no sudden changes should be introduced in order to obtain results as soon as possible. The changes should be gradual, planned, programmed, and controlled to test, evaluate and validate the proposed solutions to be implemented.

ACS Style

Teresa Morgado; André Pinto; Helena Navas; Suzana Lampreia. Development of a Computerized Maintenance Management Model of a Laboratory Testing Service Enterprise. Recent Advances in Computational Mechanics and Simulations 2021, 335 -346.

AMA Style

Teresa Morgado, André Pinto, Helena Navas, Suzana Lampreia. Development of a Computerized Maintenance Management Model of a Laboratory Testing Service Enterprise. Recent Advances in Computational Mechanics and Simulations. 2021; ():335-346.

Chicago/Turabian Style

Teresa Morgado; André Pinto; Helena Navas; Suzana Lampreia. 2021. "Development of a Computerized Maintenance Management Model of a Laboratory Testing Service Enterprise." Recent Advances in Computational Mechanics and Simulations , no. : 335-346.

Conference paper
Published: 17 June 2021 in Recent Advances in Computational Mechanics and Simulations
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Ships can navigate several months on sea. Maintenance and supply are the base for ship successful navigation and mission. Every type of equipment should have a maintenance plan. If it is a corrective maintenance plan, some risks are inherent. This study pursues a Management Maintenance System considering minimal costs, where the best equipment availability and performance is the objective. For this work, an air compressor was chosen as study case from a ship and considered three study stages. The first stage consisted of the definition of evaluation criteria and its meaningfulness. The data treatment from the first stage can provide enough information to define the second stage’s maintenance methodology decision. Also, the decision-making itself based on the process is the third stage. The development of decision-making methodology for maintenance management was based on a Fuzzy method considering a Risk-Based Maintenance on ship equipment.

ACS Style

Suzana Lampreia; Teresa Morgado; Helena Navas; Rita Cabrita; José Requeijo. An Approach to Ship Equipment Maintenance Management. Recent Advances in Computational Mechanics and Simulations 2021, 441 -450.

AMA Style

Suzana Lampreia, Teresa Morgado, Helena Navas, Rita Cabrita, José Requeijo. An Approach to Ship Equipment Maintenance Management. Recent Advances in Computational Mechanics and Simulations. 2021; ():441-450.

Chicago/Turabian Style

Suzana Lampreia; Teresa Morgado; Helena Navas; Rita Cabrita; José Requeijo. 2021. "An Approach to Ship Equipment Maintenance Management." Recent Advances in Computational Mechanics and Simulations , no. : 441-450.

Journal article
Published: 02 June 2020 in KnE Engineering
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The search for perfection forces organizations to adopt new techniques and approaches, focused on the systematic creation of innovative solutions that facilitate the processes of continuous improvement. In view of this context, there was an opportunity to study the implementation of the Lean philosophy in the production line, at a processed food organization. A continuous improvement model was designed for an organizational system, combining tools used in both TRIZ methodology and Lean philosophy. Several Lean tools are used in the model in order to support problem formulation, e.g. Brainstorming, 5 Whys, Pareto Diagram, Ishikawa Diagram, Plan-Do- Check-Act (PDCA) Cycle. And the Kano Model integrated in the proposed model allows assessing employee satisfaction at a later stage than the implementation of previously found solutions. In case the problems identified are not very complex, were resorted to the use of both TRIZ and Lean techniques, such as cause/effect databases, the 40 problem solving TRIZ principles, visual management, 5S’s or line balancing. But if the problems identified are more complex, which means with an inventive issue to be solved, Matrix of Contradictions and S-Field Analysis TRIZ tools proved to be more appropriate to find the proper solution. With the case study carried out, it was noted that the proposed model proved to be very useful as a roadmap for the implementation of Lean and TRIZ tools in the continuous improvement of industrial products, services and processes should be the ways to continually minimize them in a company. Keywords: Continuous improvement, Lean, TRIZ, Management tools, Model proposed

ACS Style

Ana S Sofia Dias; Helena Navas; António João Feliciano Pina Da Costa Abreu. Design of a Continuous Improvement Model in a Portuguese Food Industry Company – A Case Study. KnE Engineering 2020, 195–208 -195–208.

AMA Style

Ana S Sofia Dias, Helena Navas, António João Feliciano Pina Da Costa Abreu. Design of a Continuous Improvement Model in a Portuguese Food Industry Company – A Case Study. KnE Engineering. 2020; ():195–208-195–208.

Chicago/Turabian Style

Ana S Sofia Dias; Helena Navas; António João Feliciano Pina Da Costa Abreu. 2020. "Design of a Continuous Improvement Model in a Portuguese Food Industry Company – A Case Study." KnE Engineering , no. : 195–208-195–208.

Journal article
Published: 20 May 2020 in Applied Sciences
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In recent years, there has been an increase in the adoption of quality tools by companies. As such, there has been a commitment to innovation by the organizations to obtain competitive advantages by the development of new products and technologies focused on the creation of economic value but also on delivering sustainability. This study aims to develop an application model of the inventive resolution theory in conjunction with the Eco-Compass ecological innovation tool, in order to allow solutions to be obtained systematically, and to present a performance increase of certain environmental parameters, promoting thus sustainable innovation. The case study research methodology is used to frame the research. The company under study is Nokia enterprise, located in Portugal, which offers a set of services related to telecommunications infrastructures. The unit of analysis is the department of transformation and continuous improvement, and the study illustrated the application of combined use of theory of inventive problem solving (TRIZ) and Eco-compass to develop innovative solutions systematically. The results show that it is possible to achieve innovation according to a certain level of established sustainable environmental parameters, while at the same time solving the identified inventive problem.

ACS Style

Rodrigo Boavida; Helena Navas; Radu Godina; Helena Carvalho; Hiroshi Hasegawa. A Combined Use of TRIZ Methodology and Eco-Compass tool as a Sustainable Innovation Model. Applied Sciences 2020, 10, 3535 .

AMA Style

Rodrigo Boavida, Helena Navas, Radu Godina, Helena Carvalho, Hiroshi Hasegawa. A Combined Use of TRIZ Methodology and Eco-Compass tool as a Sustainable Innovation Model. Applied Sciences. 2020; 10 (10):3535.

Chicago/Turabian Style

Rodrigo Boavida; Helena Navas; Radu Godina; Helena Carvalho; Hiroshi Hasegawa. 2020. "A Combined Use of TRIZ Methodology and Eco-Compass tool as a Sustainable Innovation Model." Applied Sciences 10, no. 10: 3535.

Conference paper
Published: 05 May 2020 in Proceedings of International Conference on Big Data, Machine Learning and Applications
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The search for excellence and operational benefits forces organizations to adopt new types of techniques and approaches for the systematic creation of innovative solutions. In view of this context, this paper describes the implementation of the Lean-TRIZ approach in a production line in a Portuguese food organization. In a first step, a continuous improvement model was designed for a technical/organizational system, by combining the TRIZ methodology with Lean techniques and with the Kano Model. The initial analysis was carried out through techniques of direct observation, brainstorming and questionnaires to employees. This analysis allowed identifying the problems by identifying the root causes. Then, analytical instruments of the TRIZ methodology were applied. Finally, the level of employee satisfaction with the improvements introduced in the production line was verified through the Kano Model, which showed us positive results both from the point of view of the employee and the company. The main contribution of this paper is to determine, through a real case study, the potential of the Lean-TRIZ approach in helping organizations to implement a continuous improvement process.

ACS Style

Radu Godina; Helena Carvalho; Pedro Rodrigo; Helena Navas. Towards Continuous Improvement by Using a Lean-TRIZ Approach. Proceedings of International Conference on Big Data, Machine Learning and Applications 2020, 169 -178.

AMA Style

Radu Godina, Helena Carvalho, Pedro Rodrigo, Helena Navas. Towards Continuous Improvement by Using a Lean-TRIZ Approach. Proceedings of International Conference on Big Data, Machine Learning and Applications. 2020; ():169-178.

Chicago/Turabian Style

Radu Godina; Helena Carvalho; Pedro Rodrigo; Helena Navas. 2020. "Towards Continuous Improvement by Using a Lean-TRIZ Approach." Proceedings of International Conference on Big Data, Machine Learning and Applications , no. : 169-178.

Conference paper
Published: 05 May 2020 in Proceedings of International Conference on Big Data, Machine Learning and Applications
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Lean Thinking philosophy pursuit continuous improvement and continuous innovation towards economic and eco-sustainable growth by new solutions. Such solutions involve eco-efficient products (goods and/or services) and cleaner production to produce them. Nevertheless, sometimes, there are technical contradictions that inhibited companies to achieve good solutions. TRIZ is a methodology capable to solve such contradictions and Lean could use it. Lean and TRIZ are on the road to achieve sustainable development goals, directly, the Goal 12, responsible consumption and production. This paper presents some case studies where this alliance is recognized and credited. These case studies were collected and synthetized by: type of work developed, company/sector, main TRIZ and Lean principles and tools used, problem(s) to solve and products/solutions designed. Building on the results, the authors systematized that Lean and TRIZ impact the design of creative solutions. Many of such solutions were developed in students’ master dissertations that reveals the importance of teaching Lean allied with TRIZ.

ACS Style

Anabela C. Alves; Paulo Sousa; Helena Navas. Lean and TRIZ: From the Problems to Creative and Sustainable Solutions. Proceedings of International Conference on Big Data, Machine Learning and Applications 2020, 103 -116.

AMA Style

Anabela C. Alves, Paulo Sousa, Helena Navas. Lean and TRIZ: From the Problems to Creative and Sustainable Solutions. Proceedings of International Conference on Big Data, Machine Learning and Applications. 2020; ():103-116.

Chicago/Turabian Style

Anabela C. Alves; Paulo Sousa; Helena Navas. 2020. "Lean and TRIZ: From the Problems to Creative and Sustainable Solutions." Proceedings of International Conference on Big Data, Machine Learning and Applications , no. : 103-116.

Journal article
Published: 23 April 2020 in Sustainability
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The survival of companies in globalized and highly competitive markets, heavily depends on their ability to innovate through the creation of new products and/or services, supported by sustainable processes to prevent business failure. There are many factors regarding the interface company/stakeholders/market at all hierarchical levels, which have a major contribution to sustain innovation in processes regarding the creation of new products and services. A holistic approach of all these factors, as a whole, has not been a subject of scientific research conducting to the necessity of creating a proposal of a framework that can be integrated and systemic. Thus, this paper aims to propose a functional holistic model, which integrates the strategic, organizational and operational levels regarding market business and company interaction, as well as the set of factors to take into account to guarantee assurance that innovative processes are sustained, when new products and/or services are created or improved. Conducted through an investigation of the state of the art, by literature review, a comprehensive and integrated conceptual model was built in a deductive-inductive way. Then, the conceptual model was validated through four case studies. Finally, it was found that the conceptual framework became functional, because its applicability has been successfully tested in a business environment. As a result, the tool developed here, can be useful to measure and evaluate projects dedicated to companies that innovate in a sustainable way.

ACS Style

Ana S. M. E. Dias; António Abreu; Helena V. G. Navas; Ricardo Santos. Proposal of a Holistic Framework to Support Sustainability of New Product Innovation Processes. Sustainability 2020, 12, 3450 .

AMA Style

Ana S. M. E. Dias, António Abreu, Helena V. G. Navas, Ricardo Santos. Proposal of a Holistic Framework to Support Sustainability of New Product Innovation Processes. Sustainability. 2020; 12 (8):3450.

Chicago/Turabian Style

Ana S. M. E. Dias; António Abreu; Helena V. G. Navas; Ricardo Santos. 2020. "Proposal of a Holistic Framework to Support Sustainability of New Product Innovation Processes." Sustainability 12, no. 8: 3450.

Journal article
Published: 29 January 2020 in Applied Sciences
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Aircraft oxygen regulators are a normally used specialized test bench designed to perform tests to the regulators during its work conditions. The tests are performed placing the regulator in the barometric chamber, where low pressure conditions are forced to simulate altitude conditions and then a flow is forced on the output of the regulator to simulate the inhalation of the user. The relevant test flows are measured by laminar flowmeters. These flowmeters are meant to measure the flowrate at pressures correspondent to altitudes between sea level altitude and fifty thousand feet. In this work a way was studied to automate laminar flowmeters used on oxygen regulator test benches. For this purpose, was developed a data acquisition system (DAS) using a microcontroller board and two microelectromechanical systems—MEMSs (a pressure and temperature sensor and a differential pressure sensor). Since these MEMSs did not have factory calibration, they were calibrated in this study. The automated flowmeter was also calibrated. To estimate the error of flow rate measured by this solution, an uncertainties simulation model based on the Monte Carlo method and several calibrations were performed. According to the automated flowmeter calibration, the uncertainty obtained (±0.45% fs) is accepted, but the authors only recommend its use for actual volumetric flowrate measurements.

ACS Style

António Pedro; Teresa Morgado; Helena Navas. An Uncertainties Simulation Model Applied to an Automated Laminar Flowmeter. Applied Sciences 2020, 10, 888 .

AMA Style

António Pedro, Teresa Morgado, Helena Navas. An Uncertainties Simulation Model Applied to an Automated Laminar Flowmeter. Applied Sciences. 2020; 10 (3):888.

Chicago/Turabian Style

António Pedro; Teresa Morgado; Helena Navas. 2020. "An Uncertainties Simulation Model Applied to an Automated Laminar Flowmeter." Applied Sciences 10, no. 3: 888.

Journal article
Published: 30 November 2019 in Quality Innovation Prosperity
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Purpose: In the current market, the Portuguese industry faces strong competition from countries with substantially lower operating costs. The agri-food industry is also subject to increasing competition, both nationally and internationally. The utilization of methodologies that, in addition to continuous improvement, provide the development of creative and innovative solutions may be relevant for highlighting and differentiating between organizations. In this work, Teoriya Resheniya Izobretatelskikh Zadach and Lean Philosophies have been implemented together. Methodologies as Matrix of Ideality Matrix of Contradiction, Single Minute Exchange of Die, 5S and the Substance-Field analyses were used as complementary tools to improve the production management activities of agri-food sector. Strongly focused on the issues of time wastage and the organization and management of the filling line, the implementation of these methodologies led to a reduction of setup times, of the operators’ movement and an improvement in the line’s management and organization, and improve the results of 5S audits, depending on the work station. The aims of this study is the implementation of diferent methodologies, philosophies and tools to improve management activities.Methodology/Approach: The methodology presented in this work involves using Lean and TRIZ methodologies together. Namely Matrix of Ideality, the Matrix of Contradictions, SMED, 5S and the Substance-Field Analysis, were used to optimize the management activities, in agro-food industrial sector. The methodology strongly focused on the issues of time wastage, organization and management of an filling line.Findings: The implementation of methodologies led to a reduction of setup times by 60% to 70%, a reduction of the operators’ movement during format changes by 26.2%, and an improvement in the line’s management and organization by 9% to 12%, depending on the work station.Research Limitation/implication: In the management activities, the results are not universal. Therefore, the same methodology applied in another industrial sector will present differents results. Nevertheless, the application of this methodology and the tools choosen only make sense if it facilitates the management of improvements.Originality/Value of paper: There is a need and demand for innovative solutions that lead to continuous improvement, production processes optimization and resource saving. The combination of different validated methologies, with new concrete studies, is always in scientific and technical interest and continuously sought-after (demanded, welcome) by academic and industrial sectors.

ACS Style

Teresa L.M. Morgado; Jorge Sandiães; Helena Navas. TRIZ and Lean Philosophies Applied Together in Management Activities. Quality Innovation Prosperity 2019, 23, 90 -102.

AMA Style

Teresa L.M. Morgado, Jorge Sandiães, Helena Navas. TRIZ and Lean Philosophies Applied Together in Management Activities. Quality Innovation Prosperity. 2019; 23 (3):90-102.

Chicago/Turabian Style

Teresa L.M. Morgado; Jorge Sandiães; Helena Navas. 2019. "TRIZ and Lean Philosophies Applied Together in Management Activities." Quality Innovation Prosperity 23, no. 3: 90-102.

Journal article
Published: 06 December 2018 in Journal of Cleaner Production
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The transition towards Sustainable Product-Service Systems (SPSS) is not an easy journey. The literature indicates several difficulties in obtaining success in the design of SPSS. These hardships suggest the need for well-structured methods supporting the systematic generation of sustainable innovations and solving contradictions during the servitization process. The Theory of Inventive Problem Solving (TRIZ) is worldwide recognized by its potential to systematically solve contradictions and generate innovations. However, the research framework available and its application to SPSS design are still very limited. Thus, to address this gap, this paper aims to explore the contributions and challenges of the adoption of TRIZ in the design of SPSS. A systematic literature review of the foundations and advances in this topic was conducted. The primary results indicate the main contributions from TRIZ to SPSS development, the types of eco-innovations resulting, the artifacts (models, methods, proposition or instantiation) that applied TRIZ towards SPSS and the most frequent category of PSS resulting according to TRIZ. Findings suggest that the systematic innovation proposed by TRIZ has great potential to enable the development of systematic SPSS. Synergies between TRIZ and the sustainable strategies of Cleaner Production also were mapped. Finally, our study propose a research agenda and indicate challenges to apply TRIZ in SPSS models.

ACS Style

Diego Augusto De Jesus Pacheco; Carla Schwengber Ten Caten; Carlos Fernando Jung; Helena Victorovna Guitiss Navas; Virgílio Antônio Cruz-Machado; Leandro Miletto Tonetto. State of the art on the role of the Theory of Inventive Problem Solving in Sustainable Product-Service Systems: Past, Present, and Future. Journal of Cleaner Production 2018, 212, 489 -504.

AMA Style

Diego Augusto De Jesus Pacheco, Carla Schwengber Ten Caten, Carlos Fernando Jung, Helena Victorovna Guitiss Navas, Virgílio Antônio Cruz-Machado, Leandro Miletto Tonetto. State of the art on the role of the Theory of Inventive Problem Solving in Sustainable Product-Service Systems: Past, Present, and Future. Journal of Cleaner Production. 2018; 212 ():489-504.

Chicago/Turabian Style

Diego Augusto De Jesus Pacheco; Carla Schwengber Ten Caten; Carlos Fernando Jung; Helena Victorovna Guitiss Navas; Virgílio Antônio Cruz-Machado; Leandro Miletto Tonetto. 2018. "State of the art on the role of the Theory of Inventive Problem Solving in Sustainable Product-Service Systems: Past, Present, and Future." Journal of Cleaner Production 212, no. : 489-504.

Journal article
Published: 01 April 2018 in Journal of Engineering and Technology Management
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The debate on eco-innovation is a recent and emergent topic between practitioners and in the academy. Especially in developing economies, such as in Brazil, this topic is very incipient mainly in Small and Medium-Sized Enterprises (SMEs) context. Hence, the purpose of this study is to identify what are the determinant factors for the successful adoption of eco-innovation in Brazilian SMEs. The findings reveal several similarities/differences and intersections/overlaps resulting in a list of sixteen primary determinants. Results also demonstrated that eco-innovations in SMEs may be enabled by breaking away from the immediatist culture, by the participation of SMEs in cooperation networks, by considering the regulations affecting the sector where the SME operates and the applicable legislation, by investing in R&D of innovative technologies in conjunction with external agents, by qualified professionals planning for and implementing eco-innovation and by reinforcing the financial condition of the SMEs. The practical contribution of this study is a consolidated comprehensive framework of eco-innovation to Brazilian SMEs providing important insights and challenges to academics, policy makers, and practitioners, improving the diffusion of eco-innovative practices. Furthermore, others emerging economies will benefit from the findings of our research.

ACS Style

Diego Pacheco; Carla Schwengber Ten Caten; Carlos Fernando Jung; Helena Navas; Virgílio Antônio Cruz-Machado. Eco-innovation determinants in manufacturing SMEs from emerging markets: Systematic literature review and challenges. Journal of Engineering and Technology Management 2018, 48, 44 -63.

AMA Style

Diego Pacheco, Carla Schwengber Ten Caten, Carlos Fernando Jung, Helena Navas, Virgílio Antônio Cruz-Machado. Eco-innovation determinants in manufacturing SMEs from emerging markets: Systematic literature review and challenges. Journal of Engineering and Technology Management. 2018; 48 ():44-63.

Chicago/Turabian Style

Diego Pacheco; Carla Schwengber Ten Caten; Carlos Fernando Jung; Helena Navas; Virgílio Antônio Cruz-Machado. 2018. "Eco-innovation determinants in manufacturing SMEs from emerging markets: Systematic literature review and challenges." Journal of Engineering and Technology Management 48, no. : 44-63.

Journal article
Published: 01 April 2018 in Revista Produção e Desenvolvimento
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The development of new products (NPD) is crucial for the existence of companies, source of competitive advantage and determinant of their business success. Several factors, both operational and organizational or even strategic, contribute to the innovation process that supports NPD. The holistic assessment of all these factors as a whole has not been the subject of research leading to the proposal for an integrated and systemic model. In this way, this article aims to propose a comprehensive conceptual model that integrates the strategic, organizational and procedural levels, as well as the set of factors to be taken into account in NPD projects. Based on the literature review, a comprehensive and integrated conceptual model of NPD support (MAIDNP) is deductive-inductive. This model can therefore be a tool for evaluating processes, projects and products, dedicated to companies that innovate, design and develop new products.

ACS Style

Ana Sofia Martins Da Eira Dias; António João Pina Da Costa Feliciano Abreu; Helena Victorovna Guitiss Navas. PROPOSAL FOR A COMPREHENSIVE AND INTEGRATED MODEL OF SUPPORT FOR THE DEVELOPMENT OF NEW PRODUCTS. Revista Produção e Desenvolvimento 2018, 4, 19 -38.

AMA Style

Ana Sofia Martins Da Eira Dias, António João Pina Da Costa Feliciano Abreu, Helena Victorovna Guitiss Navas. PROPOSAL FOR A COMPREHENSIVE AND INTEGRATED MODEL OF SUPPORT FOR THE DEVELOPMENT OF NEW PRODUCTS. Revista Produção e Desenvolvimento. 2018; 4 (1):19-38.

Chicago/Turabian Style

Ana Sofia Martins Da Eira Dias; António João Pina Da Costa Feliciano Abreu; Helena Victorovna Guitiss Navas. 2018. "PROPOSAL FOR A COMPREHENSIVE AND INTEGRATED MODEL OF SUPPORT FOR THE DEVELOPMENT OF NEW PRODUCTS." Revista Produção e Desenvolvimento 4, no. 1: 19-38.

Review
Published: 01 January 2017 in Journal of Cleaner Production
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ACS Style

Diego Pacheco; Carla Ten Caten; Carlos Fernando Jung; Jose Luis Ribeiro; Helena Navas; Virgilio Machado. Eco-innovation determinants in manufacturing SMEs: Systematic review and research directions. Journal of Cleaner Production 2017, 142, 2277 -2287.

AMA Style

Diego Pacheco, Carla Ten Caten, Carlos Fernando Jung, Jose Luis Ribeiro, Helena Navas, Virgilio Machado. Eco-innovation determinants in manufacturing SMEs: Systematic review and research directions. Journal of Cleaner Production. 2017; 142 ():2277-2287.

Chicago/Turabian Style

Diego Pacheco; Carla Ten Caten; Carlos Fernando Jung; Jose Luis Ribeiro; Helena Navas; Virgilio Machado. 2017. "Eco-innovation determinants in manufacturing SMEs: Systematic review and research directions." Journal of Cleaner Production 142, no. : 2277-2287.

Book chapter
Published: 02 November 2016 in Lean Education: An Overview of Current Issues
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The Lean Philosophy and Continuous Improvement continue to be the day’s agenda of organizations. The universities feel a growing and increasingly widespread interest of undertakings in engineers and other staff with good preparation in this area. The students realize up search and attempt during the courses at the Faculty or immediately after taking courses or disciplines related to Lean. The Faculty of Science and Technology, Universidade NOVA de Lisboa, attempts to offer students a wide and updated education, according to the need of a good generalist academic background and, at the same time, provide students with opportunities for learning of new techniques and approaches.

ACS Style

Helena V. G. Navas; Virgilio Machado. Lean Teaching Experiences in Universidade NOVA de Lisboa and the TRIZ-LEAN Model. Lean Education: An Overview of Current Issues 2016, 67 -76.

AMA Style

Helena V. G. Navas, Virgilio Machado. Lean Teaching Experiences in Universidade NOVA de Lisboa and the TRIZ-LEAN Model. Lean Education: An Overview of Current Issues. 2016; ():67-76.

Chicago/Turabian Style

Helena V. G. Navas; Virgilio Machado. 2016. "Lean Teaching Experiences in Universidade NOVA de Lisboa and the TRIZ-LEAN Model." Lean Education: An Overview of Current Issues , no. : 67-76.

Book chapter
Published: 17 August 2016 in Transdisciplinary Perspectives on Complex Systems
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In complex systems the need to solve problems is constant. Numerous techniques for solving specific problems developed in various areas are clearly insufficient. Humanity needs multidisciplinary generic methods to find solutions to specific problems. Organizations need to learn to use and develop their ability to solve problems in an objective way. The use of certain methodologies and analytical techniques for problem solving allows to analyze larger number of possible solutions, create more creative solutions, saving time and resources. Problem solving is an iterative process, assuming a solid base of trans-disciplinary scientific principles complemented by empirical data, creativity, good sense, familiarity with problems that arise in practice, knowledge of the laws, rules and regulations. In the modern world, a process of decision making should take into account, in varying proportions, the combination of traditional parameters with some other concerns as well as security, economic, environmental factors, social impact and other related ideas. It is absurd to require a “correct solution” to any problem. In fact, a “good” solution today may well turn out to be “bad” solution tomorrow, either because of the development of knowledge in a given period of time, either due to other structural or social change. The concept of "Ideality” is one of the fundamental principles of the Theory of Creative Problem Solving, better known by its acronym TRIZ. The ideality is the goal that drives organizations improve all organizational systems, making them faster, better and at lower cost. Any system comes close to more and more from ideality when the number of beneficial functions increases and/or when the number of harmful functions decreases. Some techniques and analytical tools of TRIZ methodology can contribute to accelerate and improve the process of problem solving and to increase an ideality of complex systems in almost all human activities.

ACS Style

Helena V. G. Navas. Problem Solving and Increase of Ideality of Complex Systems. Transdisciplinary Perspectives on Complex Systems 2016, 305 -327.

AMA Style

Helena V. G. Navas. Problem Solving and Increase of Ideality of Complex Systems. Transdisciplinary Perspectives on Complex Systems. 2016; ():305-327.

Chicago/Turabian Style

Helena V. G. Navas. 2016. "Problem Solving and Increase of Ideality of Complex Systems." Transdisciplinary Perspectives on Complex Systems , no. : 305-327.

Conference paper
Published: 02 July 2016 in Advances in Intelligent Systems and Computing
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This paper discusses a case from an automotive industry plant where ergonomic problems were identified corresponding to inadequate postures resulting from operations performed above the workers’ head height. Company’s economic situation didn’t allowed to consider the automation of the operation despite the recognized need to reduce or, ideally, to eliminate the risk to operators. In this context the use of the TRIZ methodology offers an opportunity to identify potential solutions. Therefore, the TRIZ’s Su-Field Analysis was used, with the support of an adapted Contradiction Matrix. This approach allowed obtaining a more structured solution, combining Ergonomics with Lean management principles. The outcome of implementing the proposed solution was the elimination of wastes and the improvement of workplaces’ ergonomic quality. Furthermore, the study provided some insights on ways of eliminating or reducing existing Occupational Safety issues in the near future.

ACS Style

João F. Alves; Helena V. G. Navas; Isabel L. Nunes. Application of TRIZ Methodology for Ergonomic Problem Solving in a Continuous Improvement Environment. Advances in Intelligent Systems and Computing 2016, 473 -485.

AMA Style

João F. Alves, Helena V. G. Navas, Isabel L. Nunes. Application of TRIZ Methodology for Ergonomic Problem Solving in a Continuous Improvement Environment. Advances in Intelligent Systems and Computing. 2016; ():473-485.

Chicago/Turabian Style

João F. Alves; Helena V. G. Navas; Isabel L. Nunes. 2016. "Application of TRIZ Methodology for Ergonomic Problem Solving in a Continuous Improvement Environment." Advances in Intelligent Systems and Computing , no. : 473-485.

Journal article
Published: 01 January 2016 in IFAC-PapersOnLine
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ACS Style

Daniel C. Vaz; Alberto J.A.M. Martinho; Helena V.G. Navas. An Application of the Inventive Design Methodology to Thermal Systems: Improvement of the Insertion of Thermocouples in a Combustor. IFAC-PapersOnLine 2016, 49, 1312 -1317.

AMA Style

Daniel C. Vaz, Alberto J.A.M. Martinho, Helena V.G. Navas. An Application of the Inventive Design Methodology to Thermal Systems: Improvement of the Insertion of Thermocouples in a Combustor. IFAC-PapersOnLine. 2016; 49 (12):1312-1317.

Chicago/Turabian Style

Daniel C. Vaz; Alberto J.A.M. Martinho; Helena V.G. Navas. 2016. "An Application of the Inventive Design Methodology to Thermal Systems: Improvement of the Insertion of Thermocouples in a Combustor." IFAC-PapersOnLine 49, no. 12: 1312-1317.

Journal article
Published: 01 January 2016 in Procedia CIRP
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Studies on PSS are emerging as a growing body of literature driven by the desire to reach economic aspects and sustainable resource management. Although recent studies have highlighted environmental benefits of PSS, insights about how companies can systematically obtain eco-innovations in PSS design, using only TRIZ or TRIZ combined with other methodologies, are still limited. In this sense, aiming to identify the state of the art eco-innovation practices with TRIZ in PSS, a literature review was conducted. Findings were accumulated in order to present the current research framework in this research field. Trends and research opportunities also were identified

ACS Style

Diego A. De J. Pacheco; Carla S. Ten Caten; Helena V.G. Navas; Carlos Fernando Jung; Virgílio Cruz-Machado. Systematic Eco-innovation in PSS: State of the Art and Directions. Procedia CIRP 2016, 47, 168 -173.

AMA Style

Diego A. De J. Pacheco, Carla S. Ten Caten, Helena V.G. Navas, Carlos Fernando Jung, Virgílio Cruz-Machado. Systematic Eco-innovation in PSS: State of the Art and Directions. Procedia CIRP. 2016; 47 ():168-173.

Chicago/Turabian Style

Diego A. De J. Pacheco; Carla S. Ten Caten; Helena V.G. Navas; Carlos Fernando Jung; Virgílio Cruz-Machado. 2016. "Systematic Eco-innovation in PSS: State of the Art and Directions." Procedia CIRP 47, no. : 168-173.

Journal article
Published: 01 January 2016 in Procedia CIRP
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ACS Style

Diego Pacheco; Carla Ten Caten; Helena Navas; Carlos Fernando Jung; Virgilio Machado; Gustavo H.N. Lopes. Systematic Eco-innovation in Lean PSS Environment: An Integrated Model. Procedia CIRP 2016, 47, 466 -471.

AMA Style

Diego Pacheco, Carla Ten Caten, Helena Navas, Carlos Fernando Jung, Virgilio Machado, Gustavo H.N. Lopes. Systematic Eco-innovation in Lean PSS Environment: An Integrated Model. Procedia CIRP. 2016; 47 ():466-471.

Chicago/Turabian Style

Diego Pacheco; Carla Ten Caten; Helena Navas; Carlos Fernando Jung; Virgilio Machado; Gustavo H.N. Lopes. 2016. "Systematic Eco-innovation in Lean PSS Environment: An Integrated Model." Procedia CIRP 47, no. : 466-471.

Journal article
Published: 01 January 2016 in Procedia Structural Integrity
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ACS Style

T.L.M. Morgado; H. Navas; R. Brites. Wear study of Innovative Ti-Ta alloys. Procedia Structural Integrity 2016, 2, 1266 -1276.

AMA Style

T.L.M. Morgado, H. Navas, R. Brites. Wear study of Innovative Ti-Ta alloys. Procedia Structural Integrity. 2016; 2 ():1266-1276.

Chicago/Turabian Style

T.L.M. Morgado; H. Navas; R. Brites. 2016. "Wear study of Innovative Ti-Ta alloys." Procedia Structural Integrity 2, no. : 1266-1276.