Use of Ontological Classes in the Exploration of User Needs

2013 ◽  
Vol 371 ◽  
pp. 847-851 ◽  
Author(s):  
Adrian Oriţǎ ◽  
George Drăghici ◽  
Jean Luc Beney

This paper provides a new perspective on the construction and use of ontology in the context of the life cycle of the product. All information related to system-product should be available within the PLM (Product Lifecycle Management) but especially in innovative design phase. Because of the complexity of the information and to increase the effectiveness of the conceptual design the use of ontology is required in a particular domain, the design of machine tools, as a means of representation and classification of knowledge. The ontology is used to define a common vocabulary, explicit, formalized and shared by a community of developers in order to share knowledge and increase the efficiency of the design process. On the other hand, the design process is strongly influenced by the clarity and precision of the analysis of customer needs. To design a product well, design teams needs to know what it is the designing, and what the end-users will expect from it. Quality Function Deployment (QFD) [1] is a systematic approach to design based on a close awareness of customer desires, coupled with the integration of the functional groups. This paper proposes a taxonomy of customer needs in the QFD method and a demonstration from our point of view through an Industrial application.

2010 ◽  
Vol 139-141 ◽  
pp. 1350-1355
Author(s):  
Er Shi Qi ◽  
Hui Li ◽  
Liang Liu

This paper analyzes the relationship between virtual manufacturing (VM) and digital factory (DF), in order to distinguish the two concepts. Based on the thought of PLM (Product Lifecycle Management), compare with the definition of VM, the paper gives the definition of DF, and analyzes the category and system characteristics of DF from narrow and broad point of view. The structural relationship and operation mechanisms of VM, narrow sense DF and broad sense DF are analyzed from the perspective of functional integration. During the phase of system implementation, from the perspectives of key technologies, implementation contents, implementation characteristics and important objectives, the characteristics of the three modes of production are summarized, the conclusion of system implementation under the condition of existing technology is obtained, and the potential application of narrow sense DF is researched.


Author(s):  
Jitesh H. Panchal ◽  
Marco Gero Ferna´ndez ◽  
Christiaan J. J. Paredis ◽  
Janet K. Allen ◽  
Farrokh Mistree

Product Lifecycle Management (PLM) promises to further a holistic consideration of product design, emphasizing integration, interoperability, and sustainability throughout a product’s lifecycle. Thus far, efforts have focused on addressing lifecycle concerns from a product-centric perspective by exploiting the reusability and scalability of existing products through product platform and product family design. Not much attention has been paid to leveraging the design process and its design in addressing lifecycle considerations, however. In striving for sustainability, it is the design process that should be considered to constitute an engineering enterprise’s primary resource commitment. In this paper, an overview of the challenges inherent in designing design processes is provided. These challenges are subsequently illustrated with regard to several design scenarios of varying complexity, using an example involving the design of Linear Cellular Alloys. A distinction is made between product related requirements/goals and design process related requirements/goals. Requirements, research issues, and strategies for addressing the diverse needs of modeling design processes from a decision-centric perspective are established. Finally, key elements for enabling the integrated design of products and their underlying design processes in a systematic fashion are provided, motivating the extension of PLM to include the lifecycle considerations of design processes, thereby moving towards Design Process Lifecycle Management (DPLM).


Author(s):  
Gina Ramayanti ◽  
Ahmad Nalhadi ◽  
Rio Pujianto

PT. Arwana Nuansa Keramik is one of local tile manufacturer that produce both floor and wall tile products. Based on selling and customer complaint data in 2017 until 2018, there a lot of complaint for wall tile products and didn’t past the selling target each year. So, the aim of this study is to identified customer needs and wants in order to improve the quality of wall tile product PT. Arwana Nuansa Keramik that suit to customer needs with the result that the product can be compete with other competitor. This study using quality function deployment method until quality procedure phase. Quality Function Deployment is a method that concern in increasing the quality of a certain product based on customer needs and wants (Voice of Customer). By customer point of view, a quality is something that must have by the product, for wall tile in particular therefore it used for long life time. Identification of customer needs be obtained by distribute a questionneire to 50 respondents that recognized as a distributor of wall tile PT. Arwana Nuansa Keramik from Gorda until Tambak Area. Result of this study is a matrix that known as House of Quality matrix and contain several characteristics that can be used by PT. Arwana to improve the quality of their wall tile product. The Characteristics that shown by the matrix are strong products, ceramic products that have high quality and use advanced technology.


Author(s):  
Maria João Félix ◽  
Gilberto Santos

In this chapter an approach to the concept of value creation is done, placing some working companies in Portugal and comparing them from the received gains point of view. A goal of this work is to contribute to the new perspective of modernization of Portuguese manufacturing SMEs, evaluating innovation through technology and design and its contribution to the improvement of integrated development of products and manufacturing processes, as well as to demonstrate how design thinking is a useful tool in manufacturing engineering. Many examples of products that used technology and design “made in Portugal” are given, as well as of the way the Portuguese economy is growing in that way, resolving simultaneously the problem of the external deficit and the budget deficit. With these results, it was possible to understand where the Portuguese SMEs, which are mostly manufacturing SMEs, stand towards innovation through technology and design.


Author(s):  
Vahid Salehi ◽  
Chris McMahon

The automotive engineering process is characterized by a long and complex design process which starts with the first sketches in the preliminary design phase and extends to the final detailed CAD and physical models. Every design phase includes different process steps which are interconnected with each other. For a better handling of all created information in the different design stages there is a demand for capable Product Lifecycle Management systems (PLM). Furthermore, one of the important parts of PLM systems is the integration of the virtual product development process which can be based on parametric associative (PA) computer-aided design (CAD) systems. The main challenge is the full integration of all created PA CAD data with these kinds of system. To achieve the full potential of PA CAD systems, especially in view of the complexity of the CAD parts and assemblies, it is important to have a clear understanding of how best to use such systems. Accoring to Shah and Ma¨ntyla¨ [1] parametric systems solve constraints by applying sequentially assignment to model variables, where each assigned value is computed as a function of the previously assigned values. Related to design process associativity is the fix relationship and connection between geometrical entities and objects. These associative relationships include also the connection of 3D models and down stream process related elements. The focus of this paper is to present the results of a descriptive study which has been accomplished to identify the challenges, problems and weaknesses involved in the use of PA CAD systems in the automotive design process. After a short introduction the result of a literature survey is presented. The review is followed by presentation of the results of a questionnaire and interview study of engineers working in the automotive industry. This study demonstrates that engineers have significant difficulty in identifying and structuring the parameters and associative relationships used in PA CAD, especially in distributed design tasks. The review and the empirical study demonstrate the necessity of a generic integrated approach working with PA CAD systems. The results of this descriptive study will be used to support the methodological integration of the created CAD components in PLM environments.


2020 ◽  
Vol 1 ◽  
pp. 375-382
Author(s):  
S. Schleibaum ◽  
S. Kehl ◽  
P. Stiefel ◽  
J. P. Müller

AbstractModern machine learning methods have the potential to supply industrial product lifecycle management (PLM) with automated classification of product components. However, there is only little work in the literature on this topic. We propose to apply supervised machine learning on component meta-data. By analysing an industrial case study, we identify requirements and opportunities for automating classification, e.g. in part numbers and product structures. We validate our novel approach through a classification experiment comparing four machine learning methods on a realistic component dataset.


Author(s):  
Chunlei Li ◽  
Chris McMahon ◽  
Linda Newnes

In many engineering fields, a great deal of development is based on information processing, in particular the storing, retrieving, interpretation, and re-use of existing data. To be more competitive, the fast developing Product Lifecycle Management (PLM) systems are widely deployed by large scale enterprises. In order to improve the efficiency of data management and communication, annotation technology is considered as a promising approach to aid collaboration between design teams in concurrent design and to aid various needs during the entire product lifecycle. In this paper, a classification of approaches to annotation based on an investigation of the state-of-the-art is presented. Cases are used to illustrate how these approaches aid different phases of the product life cycle. Finally, future challenges in the use of annotation in engineering are discussed. Through this research, the contribution of the use of annotation is demonstrated, and further research work is proposed based on the findings.


Author(s):  
I. R. Khuzina ◽  
V. N. Komarov

The paper considers a point of view, based on the conception of the broad understanding of taxons. According to this point of view, rhyncholites of the subgenus Dentatobeccus and Microbeccus are accepted to be synonymous with the genus Rhynchoteuthis, and subgenus Romanovichella is considered to be synonymous with the genus Palaeoteuthis. The criteria, exercising influence on the different approaches to the classification of rhyncholites, have been analyzed (such as age and individual variability, sexual dimorphism, pathological and teratological features, degree of disintegration of material), underestimation of which can lead to inaccuracy. Divestment of the subgenuses Dentatobeccus, Microbeccus and Romanovichella, possessing very bright morphological characteristics, to have an independent status and denomination to their synonyms, has been noted to be unjustified. An artificial system (any suggested variant) with all its minuses is a single probable system for rhyncholites. The main criteria, minimizing its negative sides and proving the separation of the new taxon, is an available mass-scale material. The narrow understanding of the genus, used in sensible limits, has been underlined to simplify the problem of the passing the view about the genus to the other investigators and recognition of rhyncholites for the practical tasks.


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