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Helmi Ben Rejeb
G-SCOP Laboratory, School of Industrial Engineering, Grenoble Alpes University, 38000 Grenoble, France

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Journal article
Published: 23 March 2021 in Sustainability
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Immortal products are updated and upgraded to go from application to application and, in so doing, to extend their life as long as possible. Designing such products is the key to a sustainable society from the circular economy perspective. It is a new way of designing that must be supported by engineering tools to be deployed in companies, small and medium-sized enterprises (SMEs) included. The implementation of circular loops and the associated industrial systems are very dependent on the contexts and life scenarios of the products. Thus, depending on the products to be re-circulated, the processes controlled, and the actors involved, the requirements to be reported at design level are very diverse. This paper proposes a new design method based on lifecycle scenarios to be analyzed and designed. Supported by classical engineering tools that has been adapted for circular economy (CE) context, the lifecycle model enables simultaneous design of businesses, products and services and the evaluation of their environmental values. Three industrial design cases showing the application of engineering tools for implementation of CE lifecycle scenarios are presented.

ACS Style

Damien Evrard; Helmi Ben Rejeb; Peggy Zwolinski; Daniel Brissaud. Designing Immortal Products: A Lifecycle Scenario-Based Approach. Sustainability 2021, 13, 3574 .

AMA Style

Damien Evrard, Helmi Ben Rejeb, Peggy Zwolinski, Daniel Brissaud. Designing Immortal Products: A Lifecycle Scenario-Based Approach. Sustainability. 2021; 13 (6):3574.

Chicago/Turabian Style

Damien Evrard; Helmi Ben Rejeb; Peggy Zwolinski; Daniel Brissaud. 2021. "Designing Immortal Products: A Lifecycle Scenario-Based Approach." Sustainability 13, no. 6: 3574.

Journal article
Published: 06 August 2020 in Procedia CIRP
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This article presents the case of three projects supported by the European Institute of Innovation and Technology EIT RawMaterials in the framework of consortium between academic and industrial partners from six European countries. EIT RawMaterials has among its strategic objectives the development of educational content for the main stakeholders in the European minerals, metals and materials sector taking into account the sustainability criteria through the value chain. First, the projects studied the need for these different contents in relation to circular economy, the challenges of Critical Raw Materials (CRM), the analysis of the environmental impacts of materials. Then, the educational contents and training were developed in a collaborative way, proposing theoretical contents but also practical and hands-on exercises. The contents were then tested during pilot workshops. Lastly, the knowledge and best practices proposed were disseminated to practitioners in the different countries of the project partners. The evaluation carried out in each project highlighted great interest from practitioners and companies for such educational contents. Online tools and interactive active learning methods were encouraged in these projects, which is considered as attractive. Shortcomings were addressed after pilot workshops which improved the content quality. © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/). Peer-review under responsibility of the scientific committee of the 27th CIRP Life Cycle Engineering (LCE) Conference.

ACS Style

Helmi Ben Rejeb; Peggy Zwolinski. Development of educational contents on circular economy and critical raw materials challenges. Procedia CIRP 2020, 90, 759 -765.

AMA Style

Helmi Ben Rejeb, Peggy Zwolinski. Development of educational contents on circular economy and critical raw materials challenges. Procedia CIRP. 2020; 90 ():759-765.

Chicago/Turabian Style

Helmi Ben Rejeb; Peggy Zwolinski. 2020. "Development of educational contents on circular economy and critical raw materials challenges." Procedia CIRP 90, no. : 759-765.

Journal article
Published: 01 January 2016 in International Journal of Product Development
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Need is a major concern when designing a new product and, consequently, need analysis is a key task during the front end of innovative projects. However, need remains a paradoxical concept, something that everyone feels, accepts and understands, but is difficult to model. This research contributes to the theoretical and methodological aspect of need. To elaborate a need analysis methodology adapted to the first steps of innovative projects, a literature review highlights the main characteristics of this concept and collects definitions within a large scope of disciplines. Based on these theoretical elements and on a systemic approach, a model is suggested to describe the needs of targeted stakeholders. This model aims at the treatment of descriptive data concerning the functioning modes of customers and other involved stakeholders in order to define individual needs. An example of application of the method is detailed among a large panel of experimental innovative projects.

ACS Style

Vincent Boly; Laure Morel; Helmi Ben Rejeb; Mauricio Camargo. From descriptive customer data to need definition: a formalised approach. International Journal of Product Development 2016, 21, 369 .

AMA Style

Vincent Boly, Laure Morel, Helmi Ben Rejeb, Mauricio Camargo. From descriptive customer data to need definition: a formalised approach. International Journal of Product Development. 2016; 21 (5/6):369.

Chicago/Turabian Style

Vincent Boly; Laure Morel; Helmi Ben Rejeb; Mauricio Camargo. 2016. "From descriptive customer data to need definition: a formalised approach." International Journal of Product Development 21, no. 5/6: 369.

Journal article
Published: 01 January 2016 in International Journal of Product Development
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Need is a major concern when designing a new product and, consequently, need analysis is a key task during the front end of innovative projects. However, need remains a paradoxical concept, something that everyone feels, accepts and understands, but is difficult to model. This research contributes to the theoretical and methodological aspect of need. To elaborate a need analysis methodology adapted to the first steps of innovative projects, a literature review highlights the main characteristics of this concept and collects definitions within a large scope of disciplines. Based on these theoretical elements and on a systemic approach, a model is suggested to describe the needs of targeted stakeholders. This model aims at the treatment of descriptive data concerning the functioning modes of customers and other involved stakeholders in order to define individual needs. An example of application of the method is detailed among a large panel of experimental innovative projects.

ACS Style

Mauricio Camargo; Helmi Ben Rejeb; Laure Morel; Vincent Boly. From descriptive customer data to need definition: a formalised approach. International Journal of Product Development 2016, 21, 369 .

AMA Style

Mauricio Camargo, Helmi Ben Rejeb, Laure Morel, Vincent Boly. From descriptive customer data to need definition: a formalised approach. International Journal of Product Development. 2016; 21 (5/6):369.

Chicago/Turabian Style

Mauricio Camargo; Helmi Ben Rejeb; Laure Morel; Vincent Boly. 2016. "From descriptive customer data to need definition: a formalised approach." International Journal of Product Development 21, no. 5/6: 369.

Journal article
Published: 01 March 2011 in The TQM Journal
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Purpose – The purpose of this paper is to provide a new decision-aided tool for selecting customer needs during the new product development process. Design/methodology/approach – The study started by examining the principles of attractive quality and its limits. The theory of attractive quality developed by Kano was used to conduct a requirement assessment and classification within four categories. The study also proposed a new method for needs analysis and, finally, an experiment with a case study was carried out for new self-directed learning software. Findings – This paper proposes a methodology involving the three following steps: identifying customers' needs, classifying and evaluating them, and comparing several concepts of new products. The paper proposes a matrix modeling that is based on the Kano model, which results in an analytical approach of the attractive quality theory. This enables the selection of innovative concepts and new ideas through the evaluation of their impact on needs satisfaction. Research limitations/implications – Future research is required in order to study the impact of the vocabulary used in the Kano questionnaire; misunderstanding these needs could lead to incorrect classification. Moreover, future work could consider other technical criteria for concept selection, including technical feasibility and cost constraints. Practical implications – The formality of the model (clear steps and matrix modeling) and its graphical aspect (decision made based on graphical mappings) makes it a simple decision tool. It can be used by design teams during the Front-End phases and in activities coming upstream from the more formal and well-structured New Product Development Process (NPDP). Originality/value – A major concern for companies during an innovation process is to discover users' needs. This paper presents an integrated method for customer environment analysis, needs identification, needs classification, and new concept selection. The most interesting concepts – those that yield satisfaction – will then continue through the innovation process.

ACS Style

Helmi Ben Rejeb; Vincent Boly; Laure Morel‐Guimaraes. Attractive quality for requirement assessment during the front‐end of innovation. The TQM Journal 2011, 23, 216 -234.

AMA Style

Helmi Ben Rejeb, Vincent Boly, Laure Morel‐Guimaraes. Attractive quality for requirement assessment during the front‐end of innovation. The TQM Journal. 2011; 23 (2):216-234.

Chicago/Turabian Style

Helmi Ben Rejeb; Vincent Boly; Laure Morel‐Guimaraes. 2011. "Attractive quality for requirement assessment during the front‐end of innovation." The TQM Journal 23, no. 2: 216-234.

Journal article
Published: 31 December 2008 in Technovation
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ACS Style

Helmi Ben Rejeb; Laure Morel-Guimarães; Vincent Boly; N’Doli Guillaume Assiélou. Measuring innovation best practices: Improvement of an innovation index integrating threshold and synergy effects. Technovation 2008, 28, 838 -854.

AMA Style

Helmi Ben Rejeb, Laure Morel-Guimarães, Vincent Boly, N’Doli Guillaume Assiélou. Measuring innovation best practices: Improvement of an innovation index integrating threshold and synergy effects. Technovation. 2008; 28 (12):838-854.

Chicago/Turabian Style

Helmi Ben Rejeb; Laure Morel-Guimarães; Vincent Boly; N’Doli Guillaume Assiélou. 2008. "Measuring innovation best practices: Improvement of an innovation index integrating threshold and synergy effects." Technovation 28, no. 12: 838-854.

Conference paper
Published: 01 January 2008 in 2008 32nd Annual IEEE International Computer Software and Applications Conference
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Companies, which work on innovative products development, encounter difficulties to launch and commercialize new ideas. Many ideas, considered by companies as innovative, turn out to be commercial failures. Knowing customers needs and desires help companies preventing this situation and proposing successful products (products in their general definition, either material goods or services). Moreover, the earlier they know these needs, the greater their succeeding chances will be. This paper proposes a new methodology within three steps, to identify major stakeholderspsila needs, to classify and evaluate them and finally to compare several concepts. Kano model is used for requirement assessment and classification within four categories. This method can be used as decision aid tool for selecting the needs that should be fulfilled, according to their importance for the company.

ACS Style

Helmi Ben Rejeb; Vincent Boly; Laure Morel-Guimaraes. A New Methodology Based on Kano Model for the Evaluation of a New Product Acceptability during the Front-End Phases. 2008 32nd Annual IEEE International Computer Software and Applications Conference 2008, 619 -624.

AMA Style

Helmi Ben Rejeb, Vincent Boly, Laure Morel-Guimaraes. A New Methodology Based on Kano Model for the Evaluation of a New Product Acceptability during the Front-End Phases. 2008 32nd Annual IEEE International Computer Software and Applications Conference. 2008; ():619-624.

Chicago/Turabian Style

Helmi Ben Rejeb; Vincent Boly; Laure Morel-Guimaraes. 2008. "A New Methodology Based on Kano Model for the Evaluation of a New Product Acceptability during the Front-End Phases." 2008 32nd Annual IEEE International Computer Software and Applications Conference , no. : 619-624.

Conference paper
Published: 01 January 2006 in IFAC Proceedings Volumes
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Companies working in new product development suffer from a high failure level in their project development. New project development usually contains high amount of uncertainty coming from different sources: consumer preferences and needs, environment changes, regulations, competitors' behaviour… One way to manage these uncertainties is to focus on the upstream phases of the project. More and more, the Front-End modelling of the upstream phases is accepted and used. Our aim is to help companies in handling the uncertainties at the beginning of the Front-End tasks, by providing them with a methodology to assess the consumer needs.

ACS Style

Helmi Ben Rejeb; Laure Morel-Guimaraes; Vincent Boly. RELEVANCE OF ASSESSING THE CONSUMER NEEDS AT THE FRONT-ENDS IN A NPD PROJECT. IFAC Proceedings Volumes 2006, 39, 430 -434.

AMA Style

Helmi Ben Rejeb, Laure Morel-Guimaraes, Vincent Boly. RELEVANCE OF ASSESSING THE CONSUMER NEEDS AT THE FRONT-ENDS IN A NPD PROJECT. IFAC Proceedings Volumes. 2006; 39 (4):430-434.

Chicago/Turabian Style

Helmi Ben Rejeb; Laure Morel-Guimaraes; Vincent Boly. 2006. "RELEVANCE OF ASSESSING THE CONSUMER NEEDS AT THE FRONT-ENDS IN A NPD PROJECT." IFAC Proceedings Volumes 39, no. 4: 430-434.