115 research outputs found
Verification and Validation in GERAM Framework for Modeling of Information Systems
Get PDFThe main aim of this article is to propose a methodology for using verification and validation tools in a framework for modeling of an Industrial Enterprise Information Systems. The first part of this paper introduces the Generalized Enterprise Reference Architecture and Methodology (GERAM) framework and its parts that are used for modeling of industrial enterprise information systems. The second part introduces the verification and validation concepts and tools. The third part of this article proposes the use of the verification and validation tools in GERAM framework to improve the coherency, correctness, error-free, qualitative aspects and efficiency of an enterprise information system
Relevance of ERP implementation and critical success factors in SMES of developing countries
No full textEnd-of-life vehicle directive : a new paradigm in modern vehicle design and development process
No full text
Proposed Framework for Assessing the Sustainability of Membrane Life Cycle
Get PDFDevelopments in sustainability assessment tools are leading to an increased interest in sustainability assessment for products and services Several sustainability measurement tools and frameworks have been developed However most of these tools only focus on environmental considerations while some of the frameworks only focus on governmental progress In this paper a comprehensive framework for assessing sustainability is presented During framework development the Life Cycle Assessment (LCA) and fuzzy logic approach was applied LCA determined the sustainability parameters and estimated the potential environmental impact from the membrane product Next the fuzzy logic approach was applied to deal with the qualitative and quantitative data The proposed framework focuses on the evaluation of membrane products. However, the proposed framework can be adopted for other related products
Sustainable supplier selection and order lot-sizing: an integrated multi-objective decision-making process
Get PDFWithin supply chains activities, selecting appropriate suppliers based on the sustainability criteria (economic, environmental and social) can help companies move toward sustainable development. Although several studies have recently been accomplished to incorporate sustainability criteria into supplier selection problem, much less attention has been devoted to developing a comprehensive mathematical model that allocates the optimal quantities of orders to suppliers considering lot-sizing problems. In this research, we propose an integrated approach of rule-based weighted fuzzy method, fuzzy analytical hierarchy process and multi-objective mathematical programming for sustainable supplier selection and order allocation combined with multi-period multi-product lot-sizing problem. The mathematical programming model consists of four objective functions which are minimising total cost, maximising total social score, maximising total environmental score and maximising total economic qualitative score. The proposed model is developed based on the parameters achieved through the preprocessing of suppliers social, environmental and economic data by a rule-based weighted fuzzy approach and fuzzy analytical hierarchy process. The proficiency and applicability of the proposed approach is illustrated by a case study of packaging films in food industry. Considering sustainability criteria in the proposed model reveals that a higher value of sustainable purchasing is achievable in comparison with a single-objective cost-based model
The DFEL value methodology: a tool for design-for-environment in automotive industry
Get PDFIn the early 1990’s the European Union (EU) identified end-of-life vehicles as a priority waste stream and the EU Directive was introduced to protect the environment. Automotive companies are being pushed by environmental
awareness and legislation to recycle, remanufacture and reuse components at the end of life and also to reduce the quantity of manufacturing waste generated. Within this scenario, a design tool is needed for vehicle design processes. Besides that, the role of design in modern manufacturing is becoming even more important with companies adopting design tools as profit generating business elements. Based on this requirement, the need was identified for a new methodology to analyse vehicles when they reach end-of-life situation especially in terms of design
assessment and recyclability assessment. The aim of this paper is to give a description of the proposed tool for Design- for-End of Life Value (DFEL Value) in order to fulfil those requirements. There are two methodologies that facilitate the development of the DFEL Value concept; Recycling Function Deployment and Value Analysis. These two interrelated methodologies are primarily developed to
assist automotive designers to design a vehicle for end-of-life purposes. This paper starts with the description of the methodology for Recycling Function Deployment analysis, followed by methodology for value analysis and lastly, the development of the prototype for DFEL Value. It takes into account the impact of the EU Directive and the solution to enhance the value of end-of-life vehicles. In
the development process, several parameters in the product development process have been considered such as material types, joining techniques, product structure, environmental issues, economic consideration and also recycling technologies and facilities. Lastly, the paper presents an example of an automotive rear bumper as a case study in order to demonstrate and validate the proposed methodology
End of life vehicles recovery : process descriptio, its impact and direction of research
Get PDFIn recent years, environmental issues and sustainability have become one of the main items of debate in the automotive industries. In relation to that, most countries have set a new legislation because the situation is getting worse especially in the developed country. The legislation forces all the vehicle manufacturers to accept responsibility for the complete life cycle of vehicles. In another words, the vehicle manufacturers are forced by law to take back and recycle their products in order to support product stewardship and to enforce environmentally friendly product life cycles. This paper provides a snapshot of current practices in vehicle recovery in Europe, USA, Japan and Australia together with legislation, stakeholders and markets influencing in industry. The concepts of sustainable
development and end-of-life vehicle recovery are discussed. The paper then outlines the factors that must instigate the longer-term changes required to more readily support the core themes of the end-of-life vehicle recovery
End-of-Life Vehicle Directive: A Key Element to the Vehicle Design Process
Get PDFNowadays, industrial countries are faced with the consequence of a wide diffusion of consumer goods and shortening of product lifetime, giving rise to an increasing quantity of used products being discarded. This phenomenon will increase the problem of the disposal of used products, with the capacity of landfill sites quickly reducing. Current legislation in many developed countries is increasingly guided by the originator principle, which means that anyone who inflicts harm on the environment should pay for cleaning up the damage and, in turn, will compel manufacturers to undertake efforts of recycling at the end-of-life of their products. This has huge implications on the end-user, the manufacturer and recyclers. As such, environmental issues should be accountable throughout the whole life cycle of a product, i.e. it’s design, manufacture, use, service and it’s end-of-life. Indeed, it is becoming increasingly important that considerations are given to the disassembly of a product that can allow complete material recycling, along with possible part and subassembly reuse. Hence, this paper discusses the impact of the End-of-Life Vehicle (ELV) Directive in the current environment. It summarises the current literature published in the field. In particular, the implication ELV has on current product design practice is explored. The result of the literature review shows that, in order to successfully implement the concept of ELV, the aspects of disassembly, recycling and environment must be considered more rigorously in the vehicle design process
Work Improvement At A Car Manufacturing Company
Get PDFProductivity has been identified as an important role in any organization, especially for manufacturing sectors to gain more profit that leads to prosperity [1]. This paper reports a work improvement project in a car manufacturing company. It involves problem identification at the metal finish line and proposing recommendation to improve the current situation more efficiently. Based on the observation and data online work-in-progress (WIP) has been identified as a major problem and this is caused by the insufficient movements due to material handlings and unbalanced workload.
Method improvement technique is used to determine the best method of carrying out a task in order to eliminate the unnecessary movements. Then, line-balancing technique is used to minimize the idle time at every station or the percentage of line balance loss (LBL). In order to verify the results that were obtained from the generated line-balancing alternative, Witness simulation package is used to obtain the output. One effective alternative is chosen based on the results obtained from the simulation and cost justification. Then, a proper planning is suggested to maximize the resource utilization at the metal finish line.
Simulation results showed that productivity increases roughly three times higher than the current
situation. However, the results were obtained based on several assumptions that had been made during
carry out this project
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