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Papers by Mohamed Ouertani
Computers in Industry, Jun 1, 2010
Procedia CIRP, 2015
The global crisis and the fierce competition of emerging countries make companies struggling to s... more The global crisis and the fierce competition of emerging countries make companies struggling to stay ahead of competition. The number of companies that are enlarging their offer portfolio looking forward to new and increased sources of revenues is always increasing but the number of companies failing in successfully implementing servitization strategy is even more. One possible reason behind this is the lack of tools to support companies while dealing with services that by definition are characterized by high level of intangibility and perishability. The Service Engineering (SE) discipline that is currently working for an integrated development of tools and methodologies specifically related to services is still under development and the existing methodologies are more oriented to the manufacturing context. In the SE context Pezzotta et al., in 2014 suggested the SErvice Engineering Methodology (SEEM) for the engineering and the re-engineering of new service or Product-Service System (PSS) helping the companies in balancing their internal performance with the service value perceived by the customer. This paper aims at understanding the industrial applicability of such methodology. It presents a real case study carried out in collaboration with ABB Spa, a leading provider in power and automation technology. In the paper, all the steps performed during the application of the SEEM are described, together with the difficulties encountered. Some insights obtained with the application are also described.
Cooperative design deals with the sharing of interests and resources amongst actors to reach a co... more Cooperative design deals with the sharing of interests and resources amongst actors to reach a common purpose. This purpose lays on the development of products through the coordination between information sharing, interactions and knowledge. The research objective is to specify an information system which can support the set of knowledge involved in cooperative design situations with a special focus on conflict management situation. In previous works, a conflict management protocol was proposed and carried out in margin of the design process in which the conflict has appeared. However, several dependencies exist between the conflict management process, the design process and the involved product and organisation data. This paper deals with the notorious problem of workflows integration by proposing mechanisms allowing data integration and control flows during conflict management process.
The main challenge for product designers, especially of complex products, is to predict as finely... more The main challenge for product designers, especially of complex products, is to predict as finely as possible the consequence of the product change for its structure as well as its propagation overall the Technical Information System (TIS). Starting from the work already undertaken in this domain, we underline the lack of methods and tools of impact analysis. Our contribution is therefore to bring a method with the aim to facilitate the impact analysis in a multi TIS context. This method, based on a product model supported by a constraints resolution tool, will allow resolving the various constraints levered in an impact analysis problem.
Lecture Notes in Computer Science, 2007
Due to the multi-actors interaction during collaborative design conflicts can be revealed from di... more Due to the multi-actors interaction during collaborative design conflicts can be revealed from disagreements between designers about proposed designs. A critical element of collaborative design would be conflict resolution. This paper proposes a methodology to support designers during the process of conflict management; focusing mainly on identifying the conflict resolution team and evaluating the selected solution impact issues. The methodology is based on product data dependencies network which is composed of the handled data and the dependency links between them. Qualification concepts are introduced to manage these dependencies. In order to identify this network, a traceability model to track the design process is proposed.
Proceedings of the 2nd International Conference on Research Challenges in Information Science, RCIS 2008, 2008
Abstract In order for engineering organisations to maximise revenue they have to utilise assets i... more Abstract In order for engineering organisations to maximise revenue they have to utilise assets in an effective and efficient way. The success of an enterprise often depends on its ability to utilise assets efficiently. This paper explores challenges in managing engineering assets throughout their lifecycle. We examine the role of asset information management in improving the effectiveness with which complex engineering assets are utilised. Furthermore, the importance of quantifying the value of information in asset management ...
2014 International Conference on Engineering, Technology and Innovation (ICE), 2014
In the last years, a number of companies have undertaken a shift to a service paradigm. Apart fro... more In the last years, a number of companies have undertaken a shift to a service paradigm. Apart from the benefits obtained by the so called "servitization", many companies have also suffered the lack of methodological and systematic tools to deal with the enlargement of their Product-Service Systems (PSS) offering. The few tools nowadays available in the Service Engineering (SE) context have a reduced industrial applicability, and are mainly focused on the satisfaction of customer needs.
2013 IEEE 15th Conference on Business Informatics, 2013
ABSTRACT Companies and their customers are increasingly looking for new solutions to streamline a... more ABSTRACT Companies and their customers are increasingly looking for new solutions to streamline and improve their operations. Maintenance, which can account for in between 15 - 70% of production costs is a key area of improvement in many industries. 'When the equipment will fail' and 'due to what type of failures' are critical information toward achieving effective and efficient maintenance operations. In this contribution we develop a product-service solution offering to support customers improving their maintenance activities. We identify the technical and organizational enablers and describe a use case example from the power industry.
![Research paper thumbnail of Corrigendum to “Supporting conflict management in collaborative design: An approach to assess engineering change impacts” [Comput. Ind. 59 (December(9)) (2008) 882–893, doi:10.1016/j.compind.2008.07.010]](https://attachments.academia-assets.com/41580793/thumbnails/1.jpg)
](Computers in Industry, 2010
Computer-Aided Design, 2011
… Seminar, Design & …
Fundamental in engineering design is the notion that collaboration is useful to reduce total proj... more Fundamental in engineering design is the notion that collaboration is useful to reduce total project development time and increase design quality. Collaborative design is a collection of the co-operated efforts undertaken by a team of designers. Due to multi-actors interaction, conflicts can emerge from disagreements between designers about proposed designs. Therefore, a critical element of collaborative design would be conflict resolution. In this paper, a process meta-model based methodology is introduced to support conflict management. This methodology provides identification of the conflict resolution team and evaluation of the impact of a selected solution. The proposed process model allows the design process traceability and the data dependences network management to achieve conflict management.
16th CIRP international conference on life cycle engineering (LCE09), Cairo, Egypt, 2009
The effectiveness of the maintenance scheduling decision depends on the availability of informati... more The effectiveness of the maintenance scheduling decision depends on the availability of information regarding the remaining useful life of the asset in addition to the asset operating schedule and spares and resources required to carry out the maintenance action. In this paper, we illustrate an integrated asset maintenance approach using a lab-based demonstrator where a washing machine unit is deployed as the “asset”. The condition of the washing machine is assessed using data from a number of embedded wireless ...
International Journal of Computer Science and Applications, 2008
Abstract: The management of engineering assets such as facilities and equipments can be a challen... more Abstract: The management of engineering assets such as facilities and equipments can be a challenging task and optimising their usage is critical. To ensure effective utilization of an asset, one has to make effective decisions regarding the asset lifecycle. Consequently, it becomes imperative to gather useful information about the asset lifecycle. The objective of this paper is then to propose an approach for decision makers to develop an effective asset information management (AIM) strategy. We focus on the management of this set of ...
Collaborative design is a collection of the co-operated efforts undertaken by a team of designers... more Collaborative design is a collection of the co-operated efforts undertaken by a team of designers. Due to multi-actors interaction, conflicts can emerge from disagreements between designers about proposed designs. Therefore, a critical element of collaborative design would be conflict resolution. In this paper, the DEPNET methodology is introduced to support conflict management. This methodology is based on a Unified Modelling Language (UML) traceability model to extract the data dependencies network. This will allow identifying the conflict resolution team as well as evaluating the impact of a selected solution. A case study within an industrial partner is described to illustrate this methodology.
Computers in Industry, Jun 1, 2010
Procedia CIRP, 2015
The global crisis and the fierce competition of emerging countries make companies struggling to s... more The global crisis and the fierce competition of emerging countries make companies struggling to stay ahead of competition. The number of companies that are enlarging their offer portfolio looking forward to new and increased sources of revenues is always increasing but the number of companies failing in successfully implementing servitization strategy is even more. One possible reason behind this is the lack of tools to support companies while dealing with services that by definition are characterized by high level of intangibility and perishability. The Service Engineering (SE) discipline that is currently working for an integrated development of tools and methodologies specifically related to services is still under development and the existing methodologies are more oriented to the manufacturing context. In the SE context Pezzotta et al., in 2014 suggested the SErvice Engineering Methodology (SEEM) for the engineering and the re-engineering of new service or Product-Service System (PSS) helping the companies in balancing their internal performance with the service value perceived by the customer. This paper aims at understanding the industrial applicability of such methodology. It presents a real case study carried out in collaboration with ABB Spa, a leading provider in power and automation technology. In the paper, all the steps performed during the application of the SEEM are described, together with the difficulties encountered. Some insights obtained with the application are also described.
Cooperative design deals with the sharing of interests and resources amongst actors to reach a co... more Cooperative design deals with the sharing of interests and resources amongst actors to reach a common purpose. This purpose lays on the development of products through the coordination between information sharing, interactions and knowledge. The research objective is to specify an information system which can support the set of knowledge involved in cooperative design situations with a special focus on conflict management situation. In previous works, a conflict management protocol was proposed and carried out in margin of the design process in which the conflict has appeared. However, several dependencies exist between the conflict management process, the design process and the involved product and organisation data. This paper deals with the notorious problem of workflows integration by proposing mechanisms allowing data integration and control flows during conflict management process.
The main challenge for product designers, especially of complex products, is to predict as finely... more The main challenge for product designers, especially of complex products, is to predict as finely as possible the consequence of the product change for its structure as well as its propagation overall the Technical Information System (TIS). Starting from the work already undertaken in this domain, we underline the lack of methods and tools of impact analysis. Our contribution is therefore to bring a method with the aim to facilitate the impact analysis in a multi TIS context. This method, based on a product model supported by a constraints resolution tool, will allow resolving the various constraints levered in an impact analysis problem.
Lecture Notes in Computer Science, 2007
Due to the multi-actors interaction during collaborative design conflicts can be revealed from di... more Due to the multi-actors interaction during collaborative design conflicts can be revealed from disagreements between designers about proposed designs. A critical element of collaborative design would be conflict resolution. This paper proposes a methodology to support designers during the process of conflict management; focusing mainly on identifying the conflict resolution team and evaluating the selected solution impact issues. The methodology is based on product data dependencies network which is composed of the handled data and the dependency links between them. Qualification concepts are introduced to manage these dependencies. In order to identify this network, a traceability model to track the design process is proposed.
Proceedings of the 2nd International Conference on Research Challenges in Information Science, RCIS 2008, 2008
Abstract In order for engineering organisations to maximise revenue they have to utilise assets i... more Abstract In order for engineering organisations to maximise revenue they have to utilise assets in an effective and efficient way. The success of an enterprise often depends on its ability to utilise assets efficiently. This paper explores challenges in managing engineering assets throughout their lifecycle. We examine the role of asset information management in improving the effectiveness with which complex engineering assets are utilised. Furthermore, the importance of quantifying the value of information in asset management ...
2014 International Conference on Engineering, Technology and Innovation (ICE), 2014
In the last years, a number of companies have undertaken a shift to a service paradigm. Apart fro... more In the last years, a number of companies have undertaken a shift to a service paradigm. Apart from the benefits obtained by the so called "servitization", many companies have also suffered the lack of methodological and systematic tools to deal with the enlargement of their Product-Service Systems (PSS) offering. The few tools nowadays available in the Service Engineering (SE) context have a reduced industrial applicability, and are mainly focused on the satisfaction of customer needs.
2013 IEEE 15th Conference on Business Informatics, 2013
ABSTRACT Companies and their customers are increasingly looking for new solutions to streamline a... more ABSTRACT Companies and their customers are increasingly looking for new solutions to streamline and improve their operations. Maintenance, which can account for in between 15 - 70% of production costs is a key area of improvement in many industries. 'When the equipment will fail' and 'due to what type of failures' are critical information toward achieving effective and efficient maintenance operations. In this contribution we develop a product-service solution offering to support customers improving their maintenance activities. We identify the technical and organizational enablers and describe a use case example from the power industry.
Computers in Industry, 2010
Computer-Aided Design, 2011
… Seminar, Design & …
Fundamental in engineering design is the notion that collaboration is useful to reduce total proj... more Fundamental in engineering design is the notion that collaboration is useful to reduce total project development time and increase design quality. Collaborative design is a collection of the co-operated efforts undertaken by a team of designers. Due to multi-actors interaction, conflicts can emerge from disagreements between designers about proposed designs. Therefore, a critical element of collaborative design would be conflict resolution. In this paper, a process meta-model based methodology is introduced to support conflict management. This methodology provides identification of the conflict resolution team and evaluation of the impact of a selected solution. The proposed process model allows the design process traceability and the data dependences network management to achieve conflict management.
16th CIRP international conference on life cycle engineering (LCE09), Cairo, Egypt, 2009
The effectiveness of the maintenance scheduling decision depends on the availability of informati... more The effectiveness of the maintenance scheduling decision depends on the availability of information regarding the remaining useful life of the asset in addition to the asset operating schedule and spares and resources required to carry out the maintenance action. In this paper, we illustrate an integrated asset maintenance approach using a lab-based demonstrator where a washing machine unit is deployed as the “asset”. The condition of the washing machine is assessed using data from a number of embedded wireless ...
International Journal of Computer Science and Applications, 2008
Abstract: The management of engineering assets such as facilities and equipments can be a challen... more Abstract: The management of engineering assets such as facilities and equipments can be a challenging task and optimising their usage is critical. To ensure effective utilization of an asset, one has to make effective decisions regarding the asset lifecycle. Consequently, it becomes imperative to gather useful information about the asset lifecycle. The objective of this paper is then to propose an approach for decision makers to develop an effective asset information management (AIM) strategy. We focus on the management of this set of ...
Collaborative design is a collection of the co-operated efforts undertaken by a team of designers... more Collaborative design is a collection of the co-operated efforts undertaken by a team of designers. Due to multi-actors interaction, conflicts can emerge from disagreements between designers about proposed designs. Therefore, a critical element of collaborative design would be conflict resolution. In this paper, the DEPNET methodology is introduced to support conflict management. This methodology is based on a Unified Modelling Language (UML) traceability model to extract the data dependencies network. This will allow identifying the conflict resolution team as well as evaluating the impact of a selected solution. A case study within an industrial partner is described to illustrate this methodology.