Identifying the Material Information Requirements for Sustainable Decision Making

2013 ◽  
Author(s):  
Anantha Narayanan ◽  
Paul Witherell ◽  
Jae Hyun Lee ◽  
K. C. Morris ◽  
Sudarsan Rachuri
Keyword(s):  
Decision Making ◽  
Life Cycle ◽  
Material Properties ◽  
Product Life Cycle ◽  
Product Information ◽  
Sustainable Manufacturing ◽  
Information Model ◽  
Information Modeling ◽  
Information Requirements ◽  
Material Information

Materials play a central role in product manufacturing, contributing to each phase of product development in the form of either a component or process material. As the product revolves around materials, so does much of the product information. Material information plays a significant role in the decision making process at any stage of the product life cycle, especially with respect to the sustainability of a product. Material information in the manufacturing stages of a product’s life cycle will relate to the processes used in manufacturing and assembling individual components. The material properties may determine what processes can be used and how these processes should be controlled. To support sustainable manufacturing, the impacts of material choice should be considered during design, when resources are being committed. When comparing material alternatives at design time, it is not as simple as saying one material is “more sustainable” than another. Many different factors determine the sustainability of a product, and each of these factors may be influenced by multiple material properties represented through various information requirements. In order to develop a material information model that can satisfy these information requirements, we need to carefully study the requirements from an information modeling perspective. In this paper, we use activity models to describe design and manufacturing scenarios that rely on the availability of proper material information for sustainability decision making. We will use these models to first define specific scenarios and then to identify the types of material information that is typically required in these scenarios, and collect and categorize key concepts. Based on this study, we will make recommendations that will aid the development of a useful material information model for sustainable decision making.

A Multilayer Taxonomy of Cost Estimation Techniques, Looking at the Whole Product Lifecycle

2017 ◽  
Vol 140 (3) ◽  
Author(s):  
Stefania Altavilla ◽  
Francesca Montagna ◽  
Marco Cantamessa
Keyword(s):  
Systematic Review ◽  
Decision Making ◽  
Life Cycle ◽  
Cost Estimation ◽  
Product Life Cycle ◽  
Recent Literature ◽  
Estimation Methods ◽  
Product Lifecycle ◽  
Conscious Decision ◽  
Decision Making Tool

Product cost estimation (PCE) still draws the attention of researchers and practitioners, even though it has been extensively discussed in the literature for more than 20 years. This is due to its central impact on the company's performance. Nowadays, the adoption of cost estimation methods seems to be limited, despite the multitude of examples and applications available. A possible reason is the multitude of approaches and techniques proposed in the literature, which, instead of representing a guide for enabling possible implementations, actually create confusion and ambiguity on their appropriateness for a particular application. Hence, this paper aims to provide a systematic review of the recent literature in the field of PCE, and intensively investigates the aspects that can enable a more conscious decision on the type of technique to be adopted. This results in the identification of five different perspectives, which can be taken simultaneously into account. By combining the different viewpoints, a new multilayer framework is derived, with a specific focus on the whole product life cycle. The proposed framework can be used as a decision-making tool by both researchers and practitioners. In fact, the former group can benefit from the new structure, as a way to identify new areas of possible research opportunities. The latter group is provided an operative guide for the application in industrial contexts.

scholarly journals Approaches to the structuring of the information model of the life cycle stages of a construction object

2019 ◽  
Vol 97 ◽  
pp. 01002 ◽  
Author(s):  
Elena Gusakova ◽  
Alexey Ovchinnikov ◽  
Andrey Volkov
Keyword(s):  
Life Cycle ◽  
Information Model ◽  
Information Modeling ◽  
Information Flows ◽  
Modeling Tools ◽  
Related Information ◽  
Project Analysis ◽  
Life Cycle Stages ◽  
Special Factors ◽  
Construction Works

In the context of the general trend to accelerate change, the actual goal of scientific research in the field of construction is to analyze and design the stages of the life cycle of a construction object. The object of the study becomes the information model of the life cycle of the building. It is studied and modeled based on the concept of real estate development and using the methods of project analysis of the construction project. The widest possibilities for obtaining and analyzing data on the state of a construction object, as well as the possibilities of systematizing information flows and information modeling of different periods of its life cycle, are realized in the approach of BIM modeling of buildings and structures. With the help of BIM-modeling tools, mandatory stages and possible phases of the life cycle of a building object can be represented as hierarchically and sequentially related information flows, in which the attributes of each stage of the life cycle are formed under the influence of the preceding stages and of special factors for the considered stage. As a result, the project documentation should reflect the decisions aimed at providing the necessary conditions and opportunities for subsequent periods of the life cycle of the construction object, as well as the most adapted for the predicted changes and transformations for all future stages and phases. The analysis of characteristics and the developed structure of simple and complex construction works allows determining for each stage and phase of the life cycle of a construction object: interconnection of information flows, composition and content of the information model of the building required for the work of specialists.

A Strategic Idea Generation Method for Eco-Business Planning

2009 ◽  
Author(s):  
Shinsuke Kondoh ◽  
Nozomu Mishima
Keyword(s):  
Decision Making ◽  
Life Cycle ◽  
Product Life Cycle ◽  
Idea Generation ◽  
Strategic Decision ◽  
Business Strategies ◽  
Business Planning ◽  
Environmental Load ◽  
Laptop Computer ◽  
Life Cycle Design

Environmental consciousness has gained increasing interest in recent years, and product life cycle design that aims to maximize total value while minimizing environmental load and costs should be implemented. To achieve that, the processes of idea generation and decision-making for eco-business strategies, as well as the design of a target product and its life cycle options, should be systematically supported. This paper proposes a strategic decision-making method for eco-business planning so that a designer can easily find a set of eco-business ideas that effectively improve environmental and economic performance simultaneously. A decision-making procedure based on this method is also illustrated with a simplified example of a laptop computer business.

scholarly journals Integrated BIM-Based LCA for the Entire Building Process Using an Existing Structure for Cost Estimation in the Swiss Context

2020 ◽  
Vol 12 (9) ◽  
pp. 3748 ◽  
Author(s):  
Anita Naneva ◽  
Marcella Bonanomi ◽  
Alexander Hollberg ◽  
Guillaume Habert ◽  
Daniel Hall
Keyword(s):  
Decision Making ◽  
Life Cycle ◽  
Cost Estimation ◽  
Building Information Modeling ◽  
Ghg Emissions ◽  
Information Modeling ◽  
Existing Building ◽  
Building Process ◽  
Building Information ◽  
Existing Structure

The building sector has a significant potential to reduce the material resource demand needed for construction and therefore, greenhouse gas (GHG) emissions. Digitalization can help to make use of this potential and improve sustainability throughout the entire building’s life cycle. One way to address this potential is through the integration of Life Cycle Assessment (LCA) into the building process by employing Building Information Modeling (BIM). BIM can reduce the effort needed to carry out an LCA, and therefore, facilitate the integration into the building process. A review of current industry practice and scientific literature shows that companies are lacking the incentive to apply LCA. If applied, there are two main approaches. Either the LCA is performed in a simplified way at the beginning of the building process using imprecise techniques, or it is done at the very end when all the needed information is available, but it is too late for decision-making. One reason for this is the lack of methods, workflows and tools to implement BIM-LCA integration over the whole building development. Therefore, the main objective of this study is to develop an integrated BIM-LCA method for the entire building process by relating it to an established workflow. To avoid an additional effort for practitioners, an existing structure for cost estimation in the Swiss context is used. The established method is implemented in a tool and used in a case study in Switzerland to test the approach. The results of this study show that LCA can be performed continuously in each building phase over the entire building process using existing Building Information Modeling (BIM) techniques for cost estimation. The main benefit of this approach is that it simplifies the application of LCA in the building process and therefore gives incentives for companies to apply it. Moreover, the re-work caused by the need for re-entering data and the usage of many different software tools that characterize most of the current LCA practices is minimized. Furthermore, decision-making, both at the element and building levels, is supported.

Research on the Optimal Model of the Account Sale of the Products in Declining Period of Life Cycle Based on the Demand Shifting

2011 ◽  
Vol 204-210 ◽  
pp. 1659-1664
Author(s):  
Qing Wen Sun ◽  
Liu Huai
Keyword(s):  
Decision Making ◽  
Dynamic Programming ◽  
Life Cycle ◽  
Product Life Cycle ◽  
Credit Policy ◽  
Optimal Model ◽  
Starting Time ◽  
Total Profit ◽  
Set Up ◽  
The Impact

Research on the account sale only focused on account sale itself, and it can’t support enterprises sufficiently to make decision of account sale in theory and methodology. So considering the impact of account sale on cash sale in the process of account sale of enterprises, the demand shifting of cash sale because of account sale, the cash sale and account sale characteristics in declining period of products and applying the theories of product life cycle (PLC) and dynamic programming, the paper set up the optimal model of decision-making in declining period of life cycle for the purpose of maximizing total profit of cash sale and account sale and made out the optimal starting time, then determined the best credit policy by exploring the relation between the optimal starting time of account sale and enterprises making credit policies. The paper provides certain proof for enterprises to make reasonable and economical credit policies.

Development of Material Information Model for the Injection Molding Process and Product

2014 ◽  
Author(s):  
Utpal Roy ◽  
Bicheng Zhu
Keyword(s):  
Injection Molding ◽  
High Efficiency ◽  
Information Model ◽  
Information Modeling ◽  
Injection Molding Process ◽  
Molding Process ◽  
Model Framework ◽  
Material Data ◽  
Related Information ◽  
Material Information

Injection molding (IM) has been the most widely used manufacturing process for making plastic products mainly due to its high efficiency and manufacturability. The design of injection molding systems relies heavily on material data and related information. The availability of right material information at right time is of utmost importance for the design, operation and maintenance of the injection molding process. In this paper, a concise, and conceptual Injection Molding Material Information Model (IM-MIM) is proposed to support necessary computer-based modeling, calculation and management of material data. In this paper, we study different steps of the IM process from the information-modeling viewpoint to identify the role and influence of material properties and behaviors in decision-making process. We further developed a four-level IM-MIM model framework, which provides a foundation for different material-related activities or analyses. Several key components in the IM-MIM, which consists of the material data, physical and behavioral properties, thermodynamic and transport properties, and other material information like rheological and mechanical properties, are presented in detail.

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