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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Integrating Ad Hoc Electronic Product Catalogues Through Collaborative Maintenance of Semantic Consistency

Jingzhi, Guo, n/a January 2005 (has links)
Existing electronic markets are fragmented in the sense that each is an information island. The interoperation of product information between them is difficult especially in semantics communication. This prevents the formation of global electronic markets and the lowering distribution cost through market globalisation. The traditional and contemporary ap-proaches of product standardisation and ontology mediation could solve the problem only if all markets could adopt the same product standards, or mediation systems could mediate all heterogeneous standards and markets without semantic conflicts. However, problems generally exist in adopting a universal standard or mediating all markets through existing mediation systems. A reflection of the issue is that there are millions of ad hoc electronic product catalogues (EPCs) situated in small and medium sized enterprises (SMEs), where each EPC is a semantic community, often not aware of standards and mediation systems due to its ad hoc nature. This thesis focuses on the semantic integration of autonomous ad hoc EPCs, which are semantically inconsistent with each other. Firstly, a novel Collaborative Concept Exchange (CONEX) approach is developed for the se-mantic integration of ad hoc EPCs. Using this approach, a PRODUCT MAP is first built based on the theories of semiotic analysis and market segmentation. It functions as an analytical framework to articulate ad hoc EPCs, and answers the questions: what are the general char-acteristics of ad hoc EPCs, what are their heterogeneous relations, and how they are unevenly distributed in fragmented electronic markets. Within this framework, an abstract representa-tion of ad hoc EPCs is proposed using the articulated elements that are simple and manipu-lable. Major contributions of this framework include: the models of the abstract representa-tion of ad hoc EPCs on their structures, concepts and contexts; the semantic integration conditions of heterogeneous ad hoc EPCs; and a ConexNet of market network topology that captures the characteristics of ad hoc EPCs that are unevenly distributed in fragmented elec-tronic markets. Secondly, a three-layer CONEX information model is proposed to integrate ad hoc EPCs based on the PRODUCT MAP, which provides a trichotomy of systems, designers and users. The strategy behind the model is the separation of structure from concept and context, and hence they can be independently managed to resolve semantic conflicts between ad hoc EPCs. The major contributions of this model include the CONEX framework, collaboration mechanism and context transformation. The CONEX framework presents a formal characteri-sation and reconstruction of the structures of ad hoc EPCs based on a CONEX structure model and a CONEX grammar. It provides a formal specification for representing ad hoc EPCs including concept structure, classifier structure and mapping structure. The semantic conflicts in designing the concepts of ad hoc EPCs are resolved by a collaboration mecha-nism based on a semantic consistency model. The collaboration mechanism includes three key procedures: replicating unique concept identifiers and translating concept definitions be-tween common concepts of common EPCs; localising common concepts to local EPCs; and globalising local concepts to common EPCs. Users in the CONEX information model are not involved in any integration activities. They are provided with automatic and accurate concept exchange services through a mechanism of context transformation, which is designed based on an algorithm called Heterogeneous Concept Transformation. The separate integration of structures, concepts and contexts of ad hoc EPCs guarantees that the requirements of flexi-bility, evolvability and exactness of semantic integration have been met. Thirdly, the feasibility and features of the Collaborative Concept Exchange approach have been demonstrated in a prototype implementation that provides the services of collaborative concept design for semantic conflict resolution, and heterogeneous concept transformation for accurate and automatic concept exchange between ad hoc EPCs. A key contribution in the implementation level is the independent representation of the CONEX framework called XML PRODUCT MAP (XPM). XPM provides a feature of platform independence by con-forming to the standards of W3C XML, Simple Object Access Protocol and Web Services Description Language in both document specification and document transport. It is also a demonstration that the generic CONEX structure model and CONEX grammar can be imple-mented in any specific language such as XML for the particular scenarios of semantic integra-tion. With the aid of a collection of XPM document templates, two components called Con-cept Collaborator and Concept Transformer of the CONEX prototype are implemented to demonstrate how concepts are collaboratively designed to resolve semantic conflicts and how concepts are automatically and accurately exchanged between autonomous, heterogeneous and distributed ad hoc EPCs.
2

Study on Architecture-Oriented Vehicle Electronic Product Requirement Model

Chiu, Chun-Lung 08 January 2013 (has links)
The electronic system in automobiles has become more important in providing safety, comfort and entertainment, at the same time less harmful to the environment. Due to the fact that there are varieties in automobile electronic devises, product development has become more complex. For example, shortening product development period while maintaining quality and fulfilling requirements of each company are all important issues. The development of automobile electronic products cannot only emphasize on functionality but also need to be more customer-oriented to fulfill the needs and expectations of the users. The initial phase of product development should focus on confirming the types of products with clients in order to develop and manufacture into what have been expected. The goal of product development expected by the market has obvious differences with the actual products that have been manufactured. The reason for the differences is the emphasis on functionality during the initial phase of product development. Also, the development process has focused mainly on technological development instead of customer expectations and the changes that occur during the product life cycle, which brings in the need for ¡§Requirements Management.¡¨ Problems such as large amount of development cost, compensation, loss of order and reliability can be resolved through the application of ¡§Requirements Management.¡¨ Through observation and interviews with management team and project managing engineers, what is lacking is the method of demand analysis for system engineer of suppliers during the demand analysis stage to better analyze customer needs and to combine with existing system; thus managers can utilize the requirement analysis method to familiarize with the product. In addition, system engineers can better distribute resources and confirm demands. Based on the architecture-oriented model for auto electrical products, demand analysis method can clearly integrated different aspects, including structural and behavioral. These statistics can be utilized in the following phases during project development, such as system design, production, testing, and proofing stages, especially where integration with software, electrical and structural system is important and complex for the development of auto electrical products. The architecture-oriented model can maintain consistency and can be traceable along with the requirements model.
3

Implementing Internet of Things in the Swedish Railroad Sector : Evaluating Design Principles and Guidelines for E-Infrastructures

Nordlindh, Mattias, Berg, Mikael January 2012 (has links)
The Swedish Transportation Administration started an initiative to create a new e-infrastructure for the railroad sector in Sweden. The purpose is to follow the movement of railroad vehicles on the railway tracks and enhance logistics aspects of the transportation of goods by train. The Swedish initiative works as a pilot project for the railroad sector in the EU and if successful the e-infrastructure could be rolled out in the entire EU. It is a rare opportunity to be a part from the beginning of the creation of such a potential large scale e-infrastructure. The aim of this thesis is to provide advice early in the development process to aid in the success of the design and creation on the e-infrastructure. In the doing of this we will need to evaluate the areas: (1) the current state of the e-infrastructure, (2) the usefulness of the EPCGlobal standard for this e-infrastructure and (3) the usefulness on established e-infrastructures design principles. As a result of the thesis we have provided advice to enhance the design and implementation of the e-infrastructure, also advice is given on how to make the EPCGlobal standard’s more compatibility with the transportation sector. We have found the design principles by Hanseth & Lyytinen (2004) and Eriksson & Ågerfalk (2010) useful for the evaluation of the e-infrastructure. We also advocate that new design principles should be created to encompass the new concept of Internet of Things in e-infrastructures.
4

Technologie RFID v ekonomických sektorech. / RFID technology in the economic sectors

Kuchařová, Hana January 2011 (has links)
This thesis is focused on explanation of RFID technology. The first part analyses its historical development, describes the basic elements needed for its operation and standards enabling its spread into the supplier-customer chains. Furthermore are summarized its common applications such as systems for real-time location, traceability and identification of persons. Finally is summarized its usage in particular economic sectors. The end of the thesis is focused on suitable procedures for implementation of RFID technology into the enterprise, with respect to a feasibility of the project, which is determined in the initial study based on the methodology MMDIS.
5

Intenção de compra de um produto eletrônico e comentários online: um experimento na Internet

Almeida, Tatiane Nunes Viana de 10 July 2015 (has links)
Submitted by Tatiana Lima (tatianasl@ufba.br) on 2016-04-07T22:10:03Z No. of bitstreams: 1 Almeida, Tatiane Nunes Viana de.pdf: 6386798 bytes, checksum: 2058d838b1ff97e17ff623a0ac0dbb89 (MD5) / Approved for entry into archive by Tatiana Lima (tatianasl@ufba.br) on 2016-04-19T18:24:04Z (GMT) No. of bitstreams: 1 Almeida, Tatiane Nunes Viana de.pdf: 6386798 bytes, checksum: 2058d838b1ff97e17ff623a0ac0dbb89 (MD5) / Made available in DSpace on 2016-04-19T18:24:04Z (GMT). No. of bitstreams: 1 Almeida, Tatiane Nunes Viana de.pdf: 6386798 bytes, checksum: 2058d838b1ff97e17ff623a0ac0dbb89 (MD5) / Em um ambiente extremamente competitivo, muitas empresas lançam novos produtos de forma sistemática com o intuito de obter um diferencial perante seus concorrentes. Todavia, o excesso de opções no mercado pode confundir e sobrecarregar o consumidor que deseja adquirir um novo produto. Neste contexto, a comunicação boca a boca online surge como uma forma de superar a assimetria de informação ao descrever os atributos do produto em termos de situações de uso, mensurando sua qualidade sob o ponto de vista do usuário, diminuindo o risco do consumidor. Assim, esta tese tem como objetivo geral analisar empiricamente um modelo téorico, baseado na Teoria do Comportamento Planejado, que relacione a atitude em relação à marca, a confiança na marca, o controle comportamental percebido, a norma subjetiva e intenção de compra de um produto eletrônico, em contextos em que os consumidores se deparam com comentários online positivos e negativos. A influência deste tipo de comunicação boca a boca na intenção de compra, em contextos de baixo e alto envolvimento, também foi verificada. O método de pesquisa adotado foi o experimental, sendo o delineamento estudo de grupo de controle pré-teste/pós-teste, com esquema fatorial 2 x 3. A amostra final válida foi de 690 alunos de IES de Salvador/BA. A abordagem de pesquisa foi quantitativa e foram utilizados métodos da estatística descritiva, análise fatorial, teste t e modelagem de equações struturais para a análise dos dados. Os resultaram comprovaram que os comentários online influenciam a intenção de compra, sendo que o maior efeito foi verificado em relação as informações positivas. Os indivíduos com baixo envolvimento foram mais influenciados pelos comentáriosonline positivos, enquanto que os com alto envolvimento foram mais impactados pelos comentários online negativos. Em relação ao modelo teórico, foi incluído um construto de segunda ordem, denominado fatores motivacionais da intenção de compra, responsável pela maior variação na intenção de compra em todos os modelos analisados. Os fatores de ordem pessoal – confiança na marca e atitude em relação à marca – foram os que apresentaram maior impacto na formação do construto de segunda ordem e também os que, de forma indireta, explicaram a maior variação na intenção de compra em todos os modelos analisados. De uma forma geral, os resultados apontam para a necessidade de as empresas investirem em marcas fortes e confiáveis, dedicando maior atenção às estratégias de comunicação e à manutenção de relacionamentos de longo prazo com seus clientes. Não obstante, ressalta-se que os comentários online não devem ser negligenciados. In an extremely competitive environment, many companies launch new products in a systematic way in order to get a differential to its competitors. However, the excess of options in the market can confuse and overwhelm consumers who wish to purchase a new product. In this context,electronic word-of-mouth appears as a way to overcome information asymmetry in describing the attributes of the product in terms of situations, measuring its quality from the user's point of view, reducing the consumer's risk. Thus, this thesis has the general objective to empirically analyze a theoretical model based on the Theory of Planned Behavior, which relates the attitude toward the brand, trust in the brand, perceived behavioral control, subjective norm and purchase intent of an electronics products, in contexts where consumers are faced with positive and negative online consumers reviews. The influence of this type of word-of-mouth communication in purchase intent, contexts of below and high involvement, was also checked. The research method adopted was the experimental, and the study design pretest control group before-test/post-test with factorial 2 x 3. The valid final sample was of 690 students from Universities at Salvador/BA. The research approach was quantitative and were used methods of descriptive statistics, factor analysis, t-test and structural equation modeling to analyze the data. The result proved that the online consumers reviews influence purchase intent, with the greatest effect it was checked against the positive information. Individuals with low involvement were more influenced by the positive online consumers reviews, while with high involvement were most impacted by the negative online consumers reviews. Regarding the theoretical model, it was included a second-order construct, called motivational factors of intent to purchase, accounted for most variation in purchase intent in all the analyzed models. The factors of personal order - trust in the brand and attitude toward the brand - presented the main contribution to the second-order construct and also those who, indirectly, explained most variation in purchase intent for all models analyzed. In general, the results point to the need for companies to invest in strong and trusted brands, devoting more attention to communication strategies and maintaining long-term relationships with their customers. However, the online consumers reviews should not be overlooked.
6

台灣行動電子產品之市場擴散模式—由產業角度探討 / The Diffusion model of Mobile Electronic Product in Taiwan -To Discuss on Industry

林義強, Lin, Yi-Chiang Unknown Date (has links)
本篇論文主要在探討台灣行動電子產品的市場擴散模式,以行動電話、筆記型電腦與PDA為例,來探討個別行動電子產品的產業發展概況。 ■ 行動電子產品的擴散模式,有以下的特性: 1. 在運用技術採用生命週期理論前,需要先注意本身產品的特性,如「易攜性與方便使用」、「具個人隨身資訊管理功能」、「具傳輸資料的通訊功能」、「具智慧型處理能力」,以瞭解會吸引何種潛在使用者。 2. 行動電子產品本身的可攜性、資料處理功能,皆吸引了第一區隔族群的早期使用者購買,因此行動電子產品的初期銷售皆呈現了一波看好。 3. 行動電子產品面臨的成長不連續,是由於產品本身的功能性已吸引第一區隔族群的早期使用者,因此可呈現一波成長。但因為產品的「可靠性」、「便利性」以及「價格」因素的問題,無法吸引早期大眾的青睞,讓產品本身的市場發展出現不連續的狀態。 4. 行動電話、筆記型電腦、PDA等,其在產品的功能性上皆可吸引早期使用者的購買,但在吸引早期大眾的購買上,還是以改良其操作介面、提高產品的穩定度來做著手。因此真正影響到潛在使用者購買產品的,決定性因素還是在於產品本身的特性,若產品的價格功能比達到潛在顧客的標準,以及其操作便利性容易,則會吸引潛在顧客的購買。外部環境的影響以及資訊擴散對於提升潛在使用者購買動機的影響較小,而是以將非潛在使用者進而轉變成為潛在使用者較有所幫助。而除了外部環境與資訊擴散外,產品本身功能的延伸也可以擴展潛在使用者的數量與族群。 5. 行動電子產品的主要兩個區隔族群:「商業人士」、「非商業人士」,早期使用者主要存在於商業人士中,而非商業人士則是以早期大眾、晚期大眾為主,因此要提升產品的銷售,可由鴻溝出現前的顧客需求與非商業人士的需求差異,作一比較,針對其中的產品特性差別作改善。 ■ 資料處理取向的筆記型電腦與通訊導向的行動電話在族群擴散時,不同點為: 1. 資料處理取向的筆記型電腦與PDA,由於其潛在顧客數量與族群本身就被資料處理、數位助理限制住,因此容易讓潛在顧客陷入成長的困境中。因此若要讓潛在顧客群的數量有大量的提升,則需要靠電腦教育的普及,以及網際網路的助益,才有辦法讓電腦使用人口提升,進而增加潛在使用者的數量。 2. 相較於通訊導向的行動電話,由於行動電話本身的通訊功能是大眾不可或缺的,因此其潛在顧客群規模本就比較大,發展的潛力也大了很多。 3. 除了潛在使用者的問題,筆記型電腦與行動電話本身的使用障礙也有很大的差異,筆記型電腦本身的視窗系統雖然越來越人性化,但其問題與安裝仍有進入障礙,不像行動電話的軟體系統上使用便利,因此其成長曲線呈現快速的成長。 4. 在資料處理與通訊功能結合下,將會產生無線數據傳輸的功能,而在這兩功能的族群交集下,由於於資料處理的族群數量有限,因此其潛在使用者可能不是無線通訊的使用者,而較可能為是同時使用兩種功能下的使用者,因此可考慮在此前提下進行族群的探討與發展。 / Since 1997, the mobile electronic products became more and more popular, including mobile phone, notebook computer, and PDA. Because of the revising of communication law in 1997, the wartime of the mobile phone industry came. More and more people in Taiwan started to pay attention to mobile phone, and cheaper and cheaper the price of mobile phone is. In this way, the mobile market in Taiwan grows very fast. The rate of popularity of mobile grew to 80+% in 2000. Since the price of notebook computer down in 1997, the sales of notebook became better. Beside the price down, the popular of Internet and Win95 system are the main reason of the growth of notebook market. Another mobile electronic product: PDA, will be the next star of mobile electronic product. That is why this thesis trys to discuess these three mobile electronic products. <Objectives> This thesis trys to investigate the growth of the market of mobile electronic product, including mobile phone, notebook computer and PDA. This thesis will discuss the diffusion model of mobile electronic product in Taiwan, including the diffusion of distinguish of customers, the model of each different product the same or not. The furthermore, this thesis still try to establish the common diffusion model of mobile electronic product. The main object of this thesis is: 1. The characteristic of mobile electronic product. 2. The develop model of each mobile electronic product market before the growth of discontinuity. 3. The reason of the discontinuous growth of each mobile electronic product. 4. The influence of product reformation, diffusion channels and environment on the diffusion of divisive customers. 5. To develop the common diffusion model of mobile electronic product by the characteristic. <Research Structure> This thesis is based on diffusion of innovation as the core and supported by the industry report. According the diffusion reports and book, a diffusion model should include four elements—environment, product characteristic, diffusion channel and divisive customers. The research structure is as follows: In this diffusion model, including four main elements—environment, product characteristic, diffusion channel and divisive customers, each one element effect on another one. The environment would affect the characteristic of product and diffusion channel and customer behavior. The characterisic of product will affect on the customer’s purchase desire. The diffusion channel will decide how many customers knowing the product, and the diffusion channel include two kinds of channel—production diffusion and information diffusion. <Case Choice> This thesis choose three mobile electionic product: 1. mobile phone 2. notebook computer 3. PDA <Research Methodology> This theris adopts the case study using industry report and in-depth managers and customers interviews. Before interviewing, the author has collected related data and the under-practicing data of every industry. <Case Analysis and Conclusions> 1. Before using ‘Technology Adoption Life Cycle’, we have to understand the characteristic of the mobile electronic product, in order to understand what kind of customer will be attracted. 2. The property of carrying and data processing of mobile electronic product will attract the early adopters of first division customers. 3. The discontinuous growth of the product is because of the incomplete of reliability, convenience and price, so the early majority don’t want to purchase the product. 4. To make the customer to purchase the product, the critical factor is the characteristic of the product. If the product has complete capability, the customers will have willing to buy. 5. The main two divisive customers is ‘business people’ and ‘not business people’. The most of the early adopters is included in first division, and the second division is mainly formed of early majority and later majority. If we want to know the difference between the demand of early adopters and early majoritys, we can know it by comparing the demand of first division with second division.
7

Supply Chain Event Management – Bedarf, Systemarchitektur und Nutzen aus Perspektive fokaler Unternehmen der Modeindustrie

Tröger, Ralph 10 November 2014 (has links) (PDF)
Supply Chain Event Management (SCEM) bezeichnet eine Teildisziplin des Supply Chain Management und ist für Unternehmen ein Ansatzpunkt, durch frühzeitige Reaktion auf kritische Ausnahmeereignisse in der Wertschöpfungskette Logistikleistung und -kosten zu optimieren. Durch Rahmenbedingungen wie bspw. globale Logistikstrukturen, eine hohe Artikelvielfalt und volatile Geschäftsbeziehungen zählt die Modeindustrie zu den Branchen, die für kritische Störereignisse besonders anfällig ist. In diesem Sinne untersucht die vorliegende Dissertation nach einer Beleuchtung der wesentlichen Grundlagen zunächst, inwiefern es in der Modeindustrie tatsächlich einen Bedarf an SCEM-Systemen gibt. Anknüpfend daran zeigt sie nach einer Darstellung bisheriger SCEM-Architekturkonzepte Gestaltungsmöglichkeiten für eine Systemarchitektur auf, die auf den Designprinzipien der Serviceorientierung beruht. In diesem Rahmen erfolgt u. a. auch die Identifikation SCEM-relevanter Business Services. Die Vorzüge einer serviceorientierten Gestaltung werden detailliert anhand der EPCIS (EPC Information Services)-Spezifikation illustriert. Abgerundet wird die Arbeit durch eine Betrachtung der Nutzenpotenziale von SCEM-Systemen. Nach einer Darstellung von Ansätzen, welche zur Nutzenbestimmung infrage kommen, wird der Nutzen anhand eines Praxisbeispiels aufgezeigt und fließt zusammen mit den Ergebnissen einer Literaturrecherche in eine Konsolidierung von SCEM-Nutzeffekten. Hierbei wird auch beleuchtet, welche zusätzlichen Vorteile sich für Unternehmen durch eine serviceorientierte Architekturgestaltung bieten. In der Schlussbetrachtung werden die wesentlichen Erkenntnisse der Arbeit zusammengefasst und in einem Ausblick sowohl beleuchtet, welche Relevanz die Ergebnisse der Arbeit für die Bewältigung künftiger Herausforderungen innehaben als auch welche Anknüpfungspunkte sich für anschließende Forschungsarbeiten ergeben.
8

Supply Chain Event Management – Bedarf, Systemarchitektur und Nutzen aus Perspektive fokaler Unternehmen der Modeindustrie

Tröger, Ralph 17 October 2014 (has links)
Supply Chain Event Management (SCEM) bezeichnet eine Teildisziplin des Supply Chain Management und ist für Unternehmen ein Ansatzpunkt, durch frühzeitige Reaktion auf kritische Ausnahmeereignisse in der Wertschöpfungskette Logistikleistung und -kosten zu optimieren. Durch Rahmenbedingungen wie bspw. globale Logistikstrukturen, eine hohe Artikelvielfalt und volatile Geschäftsbeziehungen zählt die Modeindustrie zu den Branchen, die für kritische Störereignisse besonders anfällig ist. In diesem Sinne untersucht die vorliegende Dissertation nach einer Beleuchtung der wesentlichen Grundlagen zunächst, inwiefern es in der Modeindustrie tatsächlich einen Bedarf an SCEM-Systemen gibt. Anknüpfend daran zeigt sie nach einer Darstellung bisheriger SCEM-Architekturkonzepte Gestaltungsmöglichkeiten für eine Systemarchitektur auf, die auf den Designprinzipien der Serviceorientierung beruht. In diesem Rahmen erfolgt u. a. auch die Identifikation SCEM-relevanter Business Services. Die Vorzüge einer serviceorientierten Gestaltung werden detailliert anhand der EPCIS (EPC Information Services)-Spezifikation illustriert. Abgerundet wird die Arbeit durch eine Betrachtung der Nutzenpotenziale von SCEM-Systemen. Nach einer Darstellung von Ansätzen, welche zur Nutzenbestimmung infrage kommen, wird der Nutzen anhand eines Praxisbeispiels aufgezeigt und fließt zusammen mit den Ergebnissen einer Literaturrecherche in eine Konsolidierung von SCEM-Nutzeffekten. Hierbei wird auch beleuchtet, welche zusätzlichen Vorteile sich für Unternehmen durch eine serviceorientierte Architekturgestaltung bieten. In der Schlussbetrachtung werden die wesentlichen Erkenntnisse der Arbeit zusammengefasst und in einem Ausblick sowohl beleuchtet, welche Relevanz die Ergebnisse der Arbeit für die Bewältigung künftiger Herausforderungen innehaben als auch welche Anknüpfungspunkte sich für anschließende Forschungsarbeiten ergeben.

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