This paper presents an exploratory model of the NPD process, a cross-functional NPD team and NPD performance. The construct of the NPD process includes eight items, whilst that of the NPD team includes five. The NPD p...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
This paper presents an exploratory model of the NPD process, a cross-functional NPD team and NPD performance. The construct of the NPD process includes eight items, whilst that of the NPD team includes five. The NPD performance construct is represented by three variables: commitment to new product quality, acceleration of new product launch, and achievement of company objectives. Our findings give decision makers and senior management evidence that will allow them to concentrate on more significant areas of NPD improvement in future. First, we find that the NPD team is a more important factor in the success or otherwise of NPD than the NPD process, and that effective communication and technical competence/talent are the two most important elements of the NPD team. Second, we find that the NPD process and NPD team do not jointly contribute to NPD performance. Third, while the NPD team has a positive impact on the NPD process, it has an insignificant impact on NPD performance.
Reverse engineering has been a common method to glean the design experience and knowledge attached to the existing product. Up to date, most reverse engineers are focusing their work on the geometric reverse engineeri...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
Reverse engineering has been a common method to glean the design experience and knowledge attached to the existing product. Up to date, most reverse engineers are focusing their work on the geometric reverse engineering;such reverse way cannot obtain the original intrinsic knowledge which actually is located in the function model of the existing product. In this paper, functional reverse engineering is proposed to gain the design intent of the existing product though two folds: (1) A form-to-function mapping framework is presented to figure out the function structure of the existing product;(2) A re-creation design method is given through function operations of the original function model. A case study is offered to illustrate the basic principles of functional reverse engineering.
Overworking behaviors appear in multi-agent systems communication quite often. This occurs when an agent receives many messages in a short period of time. As the agent pays attention to the large amount of messages it...
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ISBN:
(纸本)9783642123832
Overworking behaviors appear in multi-agent systems communication quite often. This occurs when an agent receives many messages in a short period of time. As the agent pays attention to the large amount of messages it worsens its performance, causing the system's performance to worsen as well. The reasons for this behavior are varied and depend on the nature of the messages: an agent that sends messages to the same agent when it should have sent it to a group of agents in a balanced way;an agent that does not receive a quick response becomes impatient and keep on sending the same message to the same agent until it gets a response, and so on. This article presents a technique that detects the overworked agents in INGENIAS with a new metric and efficiently measures it with a new version of the INGENIAS Development Kit. The experimentation of this technique advocates that the existence of overworked agents is strongly related with the quality of service of multi-agent systems.
This paper presents a context-aware agent-based application for Vehicular Ad-hoc Networks. The characteristics of agent technology make them appropriate for developing dynamic and distributed systems for VANETS, and f...
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ISBN:
(纸本)9783642123832
This paper presents a context-aware agent-based application for Vehicular Ad-hoc Networks. The characteristics of agent technology make them appropriate for developing dynamic and distributed systems for VANETS, and facilitate the addition of context-aware abilities to traditional applications. In this paper we show how a JADE-LEAP agent can process context information and use it to improve the comfort of the vehicle occupants with a minimum user interaction.
Context-aware systems capture information from the attributes located within their surroundings and deal with different ways of interacting with the user in its environment. This paper proposes a multi-agent system th...
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ISBN:
(纸本)9783642124327
Context-aware systems capture information from the attributes located within their surroundings and deal with different ways of interacting with the user in its environment. This paper proposes a multi-agent system that processes and reasons the data it receives in order to identify and maintain a permanent fix on the location of a patient at home, while reliably and securely managing the infrastructure of services in its environment. The proposed multi-agent system was used to develop a prototype for controlling dependent persons in their home. The results obtained are presented in this paper.
Case-based reasoning (CBR) is a problem-solving strategy which tries to leverage past experiences (cases) to solve incoming situations. On the other hand, ontologies are proving to be a means to facilitate sharing and...
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ISBN:
(纸本)9783642124327
Case-based reasoning (CBR) is a problem-solving strategy which tries to leverage past experiences (cases) to solve incoming situations. On the other hand, ontologies are proving to be a means to facilitate sharing and reuse of bodies of knowledge across organizations and applications on the basis of a well-defined semantics for concepts and their relationships. To a certain extent, organizations may wish to operate in an autonomous, independent way, but also may wish to improve enterprise collaboration for competitiveness reasons, strategic alliances, etc. In order to achieve the integration of distributed knowledge bases used in decision making systems, a formal characterization of cases through their ontological description is presented, as well as their interrelationships with cases stored in other different repositories. We propose the use of domain classification and term mappings techniques, in concert with an Internet-operative platform that combines agent and service technologies, intended to satisfy and accomplish effective knowledge sharing across organizations.
The release of AS/EN9100:2009 standards will force many enterprises and suppliers to demonstrate enhanced quality compliant in order to obtain long term competitiveness in the aerospace global supply chain. The new st...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
The release of AS/EN9100:2009 standards will force many enterprises and suppliers to demonstrate enhanced quality compliant in order to obtain long term competitiveness in the aerospace global supply chain. The new standard provides the framework for developing and formulating innovative novel business models which become the foundation to build a competitive, customer-centric sustainable enterprise. Various enterprise modelling methods have been developed in recent years so as to offer support for enterprise design and help specify systems requirements and solutions. However, those techniques are not efficient in providing sufficient support for quality systems assessment and development. Changes to the standards had left the implementation parts of the processes linked to the standards remaining ambiguous. Using IDEF-Q as a modelling technique, this research strives to integrate with the new AS/EN9100 quality elements through the systematic integration approach which can help the enterprises in business re-engineering process. The assessment capability model is also presented to identify impacts on the existing system as a result of introducing new standards.
Regular expressions, or simply regex, have been widely used as a powerful pattern matching and text extractor tool through decades. Although they provide a powerful and flexible notation to define and retrieve pattern...
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ISBN:
(纸本)9783642124327
Regular expressions, or simply regex, have been widely used as a powerful pattern matching and text extractor tool through decades. Although they provide a powerful and flexible notation to define and retrieve patterns from text, the syntax and the grammatical rules of these regex notations are not easy to use, and even to understand. Any regex can be represented as a Deterministic or Non-Deterministic Finite Automata;so it is possible to design a representation to automatically build a regex, and a optimization algorithm able to find the best regex in terms of complexity. This paper introduces both, a graph-based representation for regex, and a particular heuristic-based evolutionary computing algorithm based on grammatical features from this language in a particular data extraction problem.
The evolution from raw materials to a ready-to-use car runs through innumerable plants and handling stations. Since the potentials for increasing efficiency in the plant engineering process have largely been exhausted...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
The evolution from raw materials to a ready-to-use car runs through innumerable plants and handling stations. Since the potentials for increasing efficiency in the plant engineering process have largely been exhausted in other areas, the cost pressure in the development or re-engineering of plants is increasing. To monitor and control production processes, manufacturing execution systems (MES) like production monitoring and control systems are developed. Today, the engineering of them takes place at the end of the plant planning process. In most cases, the plant already exists at that time. Recognized errors are very time and cost-intensive. However, this engineering effort can be shifted in earlier phases. MES can be connected to and evaluated against the Digital Factory. In doing so, the full range of features of those systems is available at that time. This contribution deals with preconditions, realization and resulting possibilities of virtual MES start-up within the Digital Factory.
This paper presents an integrated application of design of experiments (DOE) with support vector machine (SVM) for manufacturing process modeling in order to achieve a high accuracy model. The proposed method is as fo...
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ISBN:
(数字)9783642104305
ISBN:
(纸本)9783642104299
This paper presents an integrated application of design of experiments (DOE) with support vector machine (SVM) for manufacturing process modeling in order to achieve a high accuracy model. The proposed method is as follows. First, DOE is applied to indicate the critical parameters of the process. Due to the nature of defective distribution is binomial;fundamental DOE assumptions may be violated. Consequently, Freeman and Turkey (F&T) transformation was applied to the percentage of the surface appearance defect. Then the residual analysis was opted for model adequacy checking. Last but not least, the response surface methodology (RSM) model is sufficient following DOE assumptions. Then, support vector regression (SVR) was used to establish the nonlinear multivariate relationships between process parameters and responses. Data obtained from designed experiments were used in the training process. Last a grid search was adopted to the SVR model to find the optimum parameter setting. Data from real experiments of the powdering process parameters for alumina substrate sheet for product A were used to demonstrate the proposed method. Other prominent approaches, namely RSM data and artificial neural networks (ANN) learning with quick propagation algorithm (Quickprop), were conducted for comparison purposes. The experimental results suggested that the SVR was capable of high accuracy modeling and resulted in much smaller error in comparison with the results from ANN learning with quick propagation algorithm and full factorial. After searching the optimum condition from the SVR model, it was 6.5 cm of distance and the minimum level of other factors. After performing verification runs, it can be efficiently employed to reduce the percentage of surface appearance defect from 5.8% to 4.0 %. As a result, the direct cost of company has been cut down by approximately $5,200 per month from the enchanting operation of powdering machines for alumina substrate sheet.
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