Product Analysis and Variants Derivation Based on a Semantically Annotated Product Family Ontology

2009 ◽  
Author(s):  
Soon Chong Johnson Lim ◽  
Ying Liu ◽  
Wing Bun Lee
Keyword(s):  
Semantic Annotation ◽  
Product Family ◽  
Relevant Information ◽  
Product Analysis ◽  
Laptop Computer ◽  
Family Analysis ◽  
Design And Manufacturing ◽  
Commonality Analysis ◽  
Current Representation

In literature, there are a number of indexes suggested that serve as the indicator of commonality among product components, modules and variants. However, as these elements are increasingly interconnected with aspects other than the component view, the existing commonality metrics are unable to effectively model these aspects due to their limitation in capturing relevant information for analysis. Therefore, there exists a need to consider multiple design and manufacturing aspects in commonality metrics so that a comprehensive view of the commonality among product variants can be presented. In the current representation schemes proposed for product family modeling, ontology is one of the most promising ones to model the complex semantic relations among various elements in a product family. Nevertheless, the research and application of ontology in the analysis of a product family has so far received little attention. In this paper, we proposed a framework to generate a semantically annotated multi-facet product family ontology. Using a case study of a laptop computer family, we suggest and demonstrate a new commonality analysis approach based on the semantically annotated multi-facet laptop product family ontology. Together with a new method of deriving product variants based on the aforementioned ontology, our approach illustrates the merits of using semantic annotation in assisting ontology based product family analysis.

Application of Product Line Commonality Index (PCI) in a Family of Products

2014 ◽  
Vol 564 ◽  
pp. 650-655 ◽  
Author(s):  
M. Oliver Rubio ◽  
O. Julian Mora ◽  
G. Alvaro Guarin ◽  
I. Pablo Carrizosa
Keyword(s):  
Product Family ◽  
Value Added ◽  
Product Line ◽  
Effective Management ◽  
Aesthetic Appearance ◽  
Design And Manufacturing ◽  
Bicycle Frame ◽  
Market Needs ◽  
Commonality Index

Currently many companies base their marketing strategy around a family of products. Thus, they regularly add new variations to products in order to meet changing market needs, or to attract new customers. Although the basic functionality remains unchanged across products, new features, aesthetic appearance and technologies are incorporated in each new product. This if it is not checked, can generate the “complexity of the product,” which leads to a loss of productivity or quality. Thus, the effective management of product variations in design and manufacturing is challenging. The key is minimizing the non-value added variations through models within a range of options without limiting customers. This article discusses the factors that contribute to the "complexity of the product” and this is done through the product line commonality index (PCI) , which measures the level of common parts in a product family. A case study of bicycle frame displays its implementation and functionality. The index shows the possibility that the products in a family share parts effectively (modularity) and reduces the total number of parts (multifunctionality).

Product Family Design Through Ontology-Based Faceted Component Analysis, Selection, and Optimization

2013 ◽  
Vol 135 (8) ◽  
Author(s):  
Ying Liu ◽  
Soon Chong Johnson Lim ◽  
Wing Bun Lee
Keyword(s):  
Information Search ◽  
Product Family ◽  
Component Analysis ◽  
Product Family Design ◽  
Product Analysis ◽  
Laptop Computer ◽  
Multi Objective ◽  
Design Structure ◽  
Product Service ◽  
Design Requirements

Product family design (PFD) is a widely adopted strategy for product realization, especially when design requirements are diversified and multi-faceted. Due to ever-changing customer needs and the increasingly complex and integrated product design structure, PFD and its optimization have been concerned more about a rapid and contextual product analysis and variant derivation based on a multi-objective optimization scheme subject to design concerns, which are often cross disciplinary, such as product service, carbon footprint, user experience, esthetics, etc. Existing PFD modeling approaches, which are primarily structured using component attributes and assembly relationships, possess notable limitations in representing complex component and design relationships. Hence, it has restricted comprehensive PFD analysis in an agile and contextual manner. Previously, we have studied and demonstrated the feasibility of using ontology for product family modeling and have suggested a framework of faceted information search and retrieval for product family design. In this paper, several new perspectives towards PFD based on ontology modeling are presented. Firstly, new metrics of ontology-based commonality that better reveal conceptual similarity under various design perspectives are formed. Secondly, faceted concept ranking is proposed as a new ranking approach for ontology-based component search under complex and heterogeneous design requirements. Thirdly, using these ranked results, a platform selection approach that considers a maximum aggregated ranking with a minimal platform modification among various platform choices is researched. From the selected platform and the newly proposed metrics, a modified multi-objective evolutionary algorithm with an embedded feature of configuration incompatibility check is studied and deployed for the optimal selection of components. A case study of PFD using four laptop computer families is reported as our first attempt to showcase how faceted component analysis, selection, and optimization can be accomplished based on the proposed family ontology.

Commonality Index of Outsourced Function Module Based on Generalized Dice Coefficient

2014 ◽  
Vol 909 ◽  
pp. 112-116
Author(s):  
Rong Shen Lai ◽  
Liang Hou ◽  
Yong Ming Wu ◽  
Wen Guang Lin
Keyword(s):  
Manufacturing Systems ◽  
Product Family ◽  
Dice Coefficient ◽  
Performance Matrix ◽  
Starting Point ◽  
Manufacturing Complexity ◽  
Commonality Analysis ◽  
Function Module ◽  
Commonality Index

Commonality analysis is the starting point of product family redesign, providing guidance for enterprises to improve commonality, reduce product cost and manufacturing complexity. Firstly, the component-based commonality indices introduced so far are analyzed and the deficiency in respect to commonality evaluation of outsourced function module is indicated. Then, the generalized performance matrix of outsourced function module is established and the commonality index based on generalized Dice coefficient is introduced. Finally, the calculation process is demonstrated by a case study of engine modules. The proposed index is of certain significance to reduce the types of outsourced module instances, save procurement and management cost and reduce the complexity of manufacturing systems.

User Interface Design for Interactive Product Family Analysis and Variants Derivation

2010 ◽  
Author(s):  
Soon Chong Johnson Lim ◽  
Han Tong Loh ◽  
Ying Liu
Keyword(s):  
User Interface ◽  
Interaction Design ◽  
Interface Design ◽  
Product Family ◽  
User Interaction ◽  
Product Analysis ◽  
Family Analysis ◽  
Current Product ◽  
Interactive Product ◽  
Product Realization

Product family design (PFD) is one of the commonly adopted strategies of product realization in mass customization paradigm. Among the current product family modeling approaches, ontology based modeling has been identified as a promising approach. Previously, we have studied the feasibility of using a semantically annotated multi-facet product family ontology in performing product analysis and variant derivation in the PFD domain. However, the visualization aspects of the ontology are important to assist product designers and engineers to gain insights and benefit from the ever-increasing information from the ontology, e.g. dimension, assembly or configuration wise. From the previous literature, we observe that there are limited usage of visualization and interaction in PFD for tasks such as product analysis and variant derivation. The current hierarchy based representations are limited in displaying ontological relationships and tasks such as commonality analysis seldom make use of visualization to foster better understanding of component similarity. In this study, we report our efforts in assisting product family analysis and variant derivation through visualization and user interface (UI) which enables interactive PFD. Design considerations for our visualization and user interaction design are discussed. By using a multi-touch UI, we discuss on how our UI is able to enable users to better perform product analysis and variant derivation based on the aforementioned ontology in an interactive, intuitive and intelligent manner. We finally conclude this paper with some indications for future works.

Perancangan dan Pembuatan Alat Bantu Meja Putar untuk Mesin Cnc 4 Axis

2016 ◽  
Vol 10 (2) ◽  
pp. 162-171
Author(s):  
Hafid Hafid ◽  
Tatang Sutisna
Keyword(s):  
Processing Time ◽  
Rotary Table ◽  
Engineering Process ◽  
Cnc Machine ◽  
Economical Analysis ◽  
Machining Center ◽  
Design And Manufacturing ◽  
The Cost ◽  
Productivity And Competitiveness

The design and manufacturing of the rotary table with the specification Ø 170 mm (6 inches) for CNC machine 4 axis has been done. The objective of manufacturing a rotary table is to increase the efficiency of CNC machine Hardford 4 axis to be above 80% in line machining center CV. IM’s workshop. The engineering methods was taken, consist of: working preparation, manufacturing of working drawing, engineering process, the manufacturing and testing. The prototype has been tested and operated, the resulting of increasing productivity of which were as follows: the process of assembling was increased to be 3 time ( before 1 time) and processing time for a specific case reduced from 5 hours to 3 hours, number of operators for the case of assembling the rotary reduced to 1 person (before 4 persons), safety and security become to be better. The results show increased efficiency of CNC machine Hardford, from under 50% to be above 80%. Based on the economical analysis obtained by the cost of good sold (C.G.S) of the rotary table is IDR 34.060.000. The results presented in this paper is expected to be case study for developing a business of the metal and engineering SMEs domestic to the effort of improving efficiency, quality, productivity and competitiveness in global market.ABSTRAKPerancangan dan pembuatan alat bantu meja putar (rotary table) dengan spesifikasi teknis Ø 170 mm (6 inci) untuk mesin CNC 4 axis telah dilakukan. Tujuan pembuatan rotary table adalah untuk meningkatkan efisiensi mesin CNC Hardford 4 axis di atas 80% pada line machining center Bengkel CV. IM. Metode rancang bangun yang dilakukan, meliputi: persiapan kerja, pembuatan gambar kerja, proses engineering, pembuatan dan uji coba. Prototip tersebut telah diuji coba dan dioperasikan dengan hasil peningkatan produktivitas sebagai berikut: proses pengerjaan bongkar pasang meningkat menjadi 3 kali (sebelumnya 1 kali) dan waktu pengerjaan untuk kasus tertentu berkurang dari 5 jam menjadi 3 jam, jumlah operator untuk kasus bongkar pasang rotary berkurang menjadi 1 orang (sebelumnya 4 orang), keselamatan kerja dan keamanan menjadi lebih baik. Hasil peningkatan berupa efisiensi mesin CNC Hardford 4 axis dari sebelumnya di bawah 50% menjadi di atas 80%. Berdasarkan hasil perhitungan analisis ekonomi diperoleh harga pokok produksi (HPP) alat bantu meja putar adalah sebesar Rp. 34.060.000. Bahasan ini diharapkan menjadi contoh kasus bagi pengembangan usaha IKM logam dan mesin dalam negeri untuk meningkatkan efisiensi, mutu, produktivitas dan keunggulan daya saing di pasar global.Kata kunci: alat bantu meja putar, mesin CNC, harga pokok produksi

Research on the Design and Extraction of Vehicle Brand Form Gene

2013 ◽  
Vol 483 ◽  
pp. 497-501
Author(s):  
Xiao Li Chen ◽  
Xiang Li
Keyword(s):  
Product Family ◽  
Essential Elements ◽  
Product Diversification ◽  
Design Concept ◽  
Brand Value ◽  
Design Features ◽  
Modern Enterprise

Product family is a series of products with similar characteristics. It is a strategy used by modern enterprise to achieve product diversification with limited development, manufacturing and service. Product DNA is the design commonality of enterprises product family, it is distinctive and aesthetic by reflecting the company's brand value and design concept, in addition ,it include some essential elements such as form, color, material and composition. This paper introduces the methods of drawing product DNA and analysing the relevance of design features to brand style by case study.

scholarly journals Sustainability and Stakeholder Awareness: A Case Study of a Scottish University

2021 ◽  
Vol 13 (8) ◽  
pp. 4186
Author(s):  
Abdulhakeem Raji ◽  
Abeer Hassan
Keyword(s):  
Signaling Theory ◽  
Relevant Information ◽  
Voluntary Exercise ◽  
Communication Tool ◽  
Individual Interviews ◽  
Study Approach ◽  
Research Findings ◽  
Definition Of ◽  
The University

This paper adopted a case study approach to investigate the sustainability practices of a Scottish university in order to understand if sustainability forms part of its central policy agenda. As such, the paper focuses on the levels of awareness and disclosure of their sustainable practices, measuring the impacts and effectiveness of those initiatives. This paper introduces signaling theory to explore the idea that appropriate communication via integrated thinking can close the gap between the organization and its stakeholders. We believe that the provision of this relevant information will lead to better communication between the organization and its stakeholders, supporting a signaling theory interpretation. Therefore, we are suggesting that integrated thinking is an internal process that organizations can follow to increase the level of disclosure as a communication tool with stakeholders. From the literature reviewed, four themes were identified (definition of university sustainability, sustainability awareness, disclosure framework within universities, and level of accountability). The research adopted a pragmatic view and conducted individual interviews with participants belonging to three stakeholder groups (members of the university’s senior management, the governing council, and the student union executive). Although this study focused on just one Scottish university, it should still provide some insight for the better understanding of the underpinning issues surrounding the sustainability accountability practices of Scottish universities in general. The research findings indicated that the university prioritized only two sustainability dimensions—economic and environmental—and that the university still perceived sustainability as a voluntary exercise. Additionally, it is evident that the university had no framework in place for measuring its sustainability delivery—and therefore had no established medium of communicating these activities to its stakeholders. Moreover, research findings showed that the social and educational context of sustainability was lacking at the university. The university has done little or nothing to educate its stakeholders on sustainability.

scholarly journals Protection of Children in Difficulty in China during the COVID-19 Pandemic

2020 ◽  
Vol 13 (1) ◽  
pp. 279
Author(s):  
Fang Zhao ◽  
Ning Zhu ◽  
Juha Hämäläinen
Keyword(s):  
Child Protection ◽  
Relevant Information ◽  
Integrated System ◽  
Protection System ◽  
Political Awareness ◽  
Child Protection Services ◽  
The Media ◽  
Professional Systems ◽  
Depth Interviews

This study investigated the resilience of the Chinese child protection system in responding to the special needs of children in difficulty under the specific circumstances caused by the COVID-19 pandemic. This study applied qualitative document analysis of child protection administrative documents, in-depth interviews with 13 child protection professionals, and an in-depth case study of 14 children living in difficulty, complemented by relevant information available in the media. The results indicate that there are good policies in China’s child protection services but the organizational and functional fragmentation complicates implementation, suggesting a need for the development of bottom-up practices. The essential conclusion supported by these results is that the child protection system should be regarded and developed as a systematic project combining the legal, policymaking, and professional systems of child welfare services as well as governmental and non-governmental forces. As the COVID-19 pandemic has raised awareness of the need to develop the field of child protection holistically as an integrated system in terms of social sustainability in China, an international literature-based comparison indicates that the pandemic has also raised similar political awareness in other countries.

UNDERSTANDING PERCEPTIONS OF CHANGE: A PATHWAYS CONTRIBUTION TO COMMUNITY CONSULTATION AND ENVIRONMENTAL DECISION-MAKING

2004 ◽  
Vol 06 (02) ◽  
pp. 189-211 ◽  
Author(s):  
MARK LEMON ◽  
PAUL JEFFREY ◽  
BRIAN S. MCINTOSH ◽  
TIM OXLEY
Keyword(s):  
Environmental Change ◽  
Relevant Information ◽  
Clear Understanding ◽  
Community Consultation ◽  
The Public ◽  
Environmental Decision Making ◽  
Individual Perceptions ◽  
Time Space ◽  
The Uk

Participation has become part of the language of environmental management. While this move is positive there remains a danger that overly formalised and restricted participatory procedures, in terms of the information sought, may constrain and hinder dialogue and learning between the public and management agencies. Responses to specific issues are often sought from members of the public without a clear understanding about whether those issues are salient to them, where they are salient or how they fit into multiple and dynamic interpretations of environmental change. This paper uses case study material from the UK to demonstrate a novel Pathways Approach to the recording and analysis of individual perceptions about environmental change. The approach seeks to concentrate on experience and interpretation and is based on the conceptualisation of perceived cause–effect relationships and the pathways that support them. The links between time, space and community are considered within this analysis, as is the potential for improved participation through the provision of policy relevant information to planners and environmental managers operating in complex, multi-perspective situations.

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