Encyclopedia of Portal Technologies and Applications最新文献

{"title":"Developing Semantic Portals","authors":"Brooke Abrahams","doi":"10.4018/978-1-59140-989-2.CH041","DOIUrl":"https://doi.org/10.4018/978-1-59140-989-2.CH041","url":null,"abstract":"","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122181239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"User Acceptance Affecting the Adoption of Enterprise Portals","authors":"S. Moeller","doi":"10.4018/978-1-59140-989-2.CH174","DOIUrl":"https://doi.org/10.4018/978-1-59140-989-2.CH174","url":null,"abstract":"The implementation of enterprise portals has been cited as the most important business information project of the next decade (Collins, 1999; Daniel & Ward, 2005). However, introducing enterprise portals can cause resistance and confusion among users. Often, portals provide a completely new work environment based on new user interfaces structuring content, services, and applications in a very different manner (Kakamanu & Mezzacca, 2005; Shilakes & Tylman, 1998). In addition, enterprise portals often provide new functions and features that, at first, can overload the user. Although the development and introduction of enterprise portals is already considered as a complex and challenging task (De Carvalho, Ferreira, & Choo, 2005), the subsequent process of getting end-users to accept and adopt the portal in their daily work processes is even more challenging. Often, this is seen as the most crucial factor to making the portal solution a success (Aiken & Sullivan, 2002; Kakamanu & Mezzacca, 2005). Models and methods for measuring and increasing the acceptance of enterprise portals are expected to contribute significantly to a successful, efficient, and economic portal implementation. In the past, this led to a number of different portal acceptance models, each with certain advantages and weaknesses. Usually, the models focus on one or a few particular portal implementation projects, for example, a human-resource portal or a consumer portal. The broad range of different enterprise portal implementations, starting with extranet portals providing in-depth content and offering special advantages for business-to-business or e-commerce activities, up to intranet portals supporting internal communication and knowledge management, demands a highly flexible and adaptable framework supporting the systematic identification of individually important, measurable, and independent acceptance criteria. In this article, such a general purpose model, called the dynamic acceptance model for the reevaluation of technologies (DART), is presented. We start by reviewing existing portal acceptance models. Subsequently, we present the DART model and its application in one exemplary enterprise portal implementation. Finally, we summarize our key findings and outline further trends in portal acceptance research.","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128257561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Countermeasures for Protecting Legally Sensitive Web-Powered Databases and Web Portals","authors":"Theodoros Evdoridis","doi":"10.4018/978-1-59140-989-2.CH033","DOIUrl":"https://doi.org/10.4018/978-1-59140-989-2.CH033","url":null,"abstract":"The issue of the escalation of security breaches in the field of Web systems has caused a great deal of disquiet in the computer security community. The majority of recorded security violations against legally sensitive portals have raised numerous issues both at an individual and at an organizational level. Furthermore, taking for granted the fact that security achieved through the isolation of the targeted systems is a path which no one is willing to follow, it is understood that security countermeasures must be perceived and applied without any alterations in respect of the current operational scheme. The economic and social reasons for using the Internet are still far too compelling (Schneier, 2005). Looking in this direction, the complexity as well as the urgency of the present situation has attracted specialists from other scientific sectors, such as psychology and law, who contribute to the search for an integrated multilevel solution required in this context.","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128292504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How Corporate Portals Support Innovation","authors":"S. Gordon, Monideepa Tarafdar","doi":"10.4018/978-1-59140-989-2.CH076","DOIUrl":"https://doi.org/10.4018/978-1-59140-989-2.CH076","url":null,"abstract":"The ability of a company to be innovative depends on many factors, such as a culture amenable to risk taking (Kontoghiorghes, Awbre, & Feurig, 2005), a managerial attitude favorable toward change (Damanpour, 1991), a market orientation (Hult, Hurley, & Knight, 2004), committed champions (Howell, 2005), and an adequate supply of physical and financial resources for research (Delbecq & Mills, 1985). In addition, the innovation process requires organizational and technical competences in knowledge management, collaboration, and communication (Carneiro, 2000; McAdam, 2000; Zakaria, Amelinckx, & Wilemon, 2004,). Corporate portals are central to achieving these competences. This article describes how corporate portals can support innovation in organizations through the enhancement of knowledge management, communication, and collaboration.","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130200922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Digital Rights Protection Management of Web Portals Content","authors":"Theodoros Evdoridis","doi":"10.4018/978-1-59140-989-2.CH044","DOIUrl":"https://doi.org/10.4018/978-1-59140-989-2.CH044","url":null,"abstract":"Without doubt one of the most important factors that contributed to the wide acceptance and popularity of Web portals is the potential for users to access a broad spectrum of information from a single access point, the Web portal itself. A Web portal, in such a way, aggregates information from multiple sources and makes that information available to various users. Regardless of whether the offered assets are hosted within the Web portal or whether the latter serves as a gateway to information services and resources located on the rest of the Internet, a Web portal is simultaneously an all-in-one Web site and a browsing guide to all available Internet information worldwide. Even though there is no definite taxonomy of portals, relevant labels such as government, community, enterprise, general and others are offered aiming at defining the Web portal with respect to its content and its target group. Summarizing, it could be assumed that a Web portal offers centralized access to all relevant content and applications (Tatnall, 2005). On the other hand, the ability to create, host and distribute digital material, one of the key features of digital technology that a Web portal utilizes and derives its huge success from, proved to be a double edged sword since it allowed zero cost reproduction of the digital material for purposes of piracy. Piracy of relevant digital material offered by a Web portal is common today and it has posed significant problems in terms of financial losses to the owners of digital content that is offered through it. This explains why the owners of digital content hesitate to place their work on a Web portal where they may be illegally copied and distributed. Nonetheless, the advantages of adopting this idea and applying it securely in practice are considerable from both customer and owner perspectives. That is why effective copyright protection techniques must be employed in order to convince the owners of digital material to allow their assets to be hosted on the Internet and especially on Web portals. The latter are highly attractive to the new world and are considered to be the meeting point for all technologically oriented people with a mind to purchase something. This is where digital rights management (DRM) comes into play, employing a set of technical means to control illegal distribution of the aforementioned material and to protect the intellectual property of the original owners (Guenette, Gussin, & Trippe, 2001). Furthermore DRM aims to protect the rights of the users who legitimately purchased the digital material from the original owners. This article surveys the most effective watermarking techniques available for every multimedia and database entry that requires copyright protection within a Web portal. Subsequently, the most commonly encountered code obfuscation methods for software objects will be discussed. The conclusion will present views for the future of DRM in the territory of Web portal applications.","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"288 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132219233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Web Services for Learning in Educational Settings","authors":"B. Andresen","doi":"10.4018/978-1-59140-989-2.CH190","DOIUrl":"https://doi.org/10.4018/978-1-59140-989-2.CH190","url":null,"abstract":"It is only quite recently that politicians and educational thinkers have begun seriously to reconsider the traditional learning environments and to value the application of Web services into primary and secondary schools. In addition, many school leaders and teachers have been more inclined to value the application of portal technology because they believe that it fosters learning. The continuing concern about the validity of the Victorian models of schooling thus reflects the rapid development of the portal technology. Currently, school district portals cover a spectrum of services and resources from public portals to learning management systems integrated with various internal Web services. Real changes in learning took part once these intranets and the Internet began offering a new tool and medium with which to support and mediate schooling (Abbott, 1995). This article covers the application of portal technology into schools (grade 0-12). By providing guidance for researchers and practitioners in this field, this article aims to add to the body of work in the use of Web resources and services at primary and secondary schools.","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134374801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Success Factors for the Implementation of Enterprise Portals","authors":"Ulrich Remus","doi":"10.4018/978-1-61520-969-9.CH084","DOIUrl":"https://doi.org/10.4018/978-1-61520-969-9.CH084","url":null,"abstract":"The implementation of enterprise portals is still ranked top on the wish list of many CEOs, expecting that the portal becomes the core system for offering a flexible infrastructure that integrates and extends business applications “beyond the enterprise” (Hazra, 2002). By 2009, the market for application integration, middleware, and portals is expected to grow to $7.1 billion, with a 5-year compound annual growth rate of 2.7% (Correia, Biscotti, Dharmasthira, & Wurster, 2005). The success of enterprise portals is not astonishing, since the portal concepts promise to provide secure, customizable, personalizable, integrated access to dynamic content from a variety of sources, in a variety of source formats, wherever it is needed (Amberg, Holzner, & Remus, 2003; Collins, 2001; Davydov, 2001; Hazra, 2002; Kastel, 2003; Smith, 2004; Sullivan, 2004), enabling core e-business strategies by running supportive portals like knowledge portals, employee portals, ERP portals, collaborative portals, process portals, and partner portals. However, after the first wave of euphoria, the high expectations of companies became more and more realistic, taking into account that portal projects are complex, timeand cost-consuming, with a high risk of failure. In complex portal projects, costs and benefits to build up and operate an enterprise portal are weighed up in a systematic manner, including make-or-buy decisions with regard to packaged portal platforms vs. open source developments, individually developed vs. purchased portal components (so called portlets), and benefits vs. costs to run, maintain, and improve the portal (Hazra, 2002). Altogether, the growing demand for portal solutions is leading to an increasing attention in regard to the management of critical success factors (CSF). In contrast to many studies and surveys covering aspects about the portal market and technological features of packaged portal platforms, there is still little known about CSF and best practices when implementing enterprise portals. Considering these critical factors, portal implementation projects can be directed and managed more effectively. The goal of this article is to present the most important factors that are critical for the success of the implementation of an enterprise portal. In order to better understand these factors, we first provide background knowledge on basic tasks, actors, and relationships in typical portal implementation projects. We then present a comprehensive list of CSF, together with a categorisation framework, classifying these factors into tactical vs. strategic, technical vs. organizational, static vs. dynamic, and stagevs. nonstage-specific CSF.","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134547361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Portals in the Public Sector","authors":"E. Watson, B. Schaefer","doi":"10.4018/978-1-59140-989-2.CH134","DOIUrl":"https://doi.org/10.4018/978-1-59140-989-2.CH134","url":null,"abstract":"A complete enterprise portal solution should provide all users personalized, convenient, and secure access to everything needed to perform their tasks or job functions. The SAP portal platform provides a single point of access to a variety of information sources in an organization and enables personalization of this content based on the user’s classification. Content is provided in the portal client through a standard browser on the end user desktop, without a need to install any additional components. This article reviews the SAP portal offering and discusses issues around the design and delivery of portal technology. In particular, the public sector environment will be discussed with analysis of the employee portal for the State of Louisiana.","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129337101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Case Study of an Integrated University Portal","authors":"Tracy R. Stewart","doi":"10.4018/978-1-59140-989-2.CH019","DOIUrl":"https://doi.org/10.4018/978-1-59140-989-2.CH019","url":null,"abstract":"The increasing complexity and interdependence of campus technology systems poses a significant challenge to universities. Such efforts cannot be solely the domain of a university technology department but requires participation across the institution in order to ensure success. As Irvine (2003) noted, “a decision about course management platforms or portals and their interoperability with other campus systems is a critical institution-wide issue that involves the whole university community” (p. 5). This case study considers the development of an Oracle-powered database-driven student and faculty information single-sign-on portal at Regent University called myRegent. This recently developed portal integrates with our existing student information and learning management systems, SCT Banner, and Blackboard Learning System respectively. From its inception, Regent University has leveraged technology to allow students to participate in graduate education without limiting students to live in a particular geographical location during the course of their studies. Since 1989, the faculty have harnessed distance education technologies and corresponding instructional models to extend educational access beyond Southeastern Virginia. In the years since the first distance education courses were offered, Regent University’s off-campus programs have undergone the following technological progression:","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116038510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Declarative Approach for Designing Web Portals","authors":"William Gardner, R. Rajugan","doi":"10.4018/978-1-59140-989-2.CH035","DOIUrl":"https://doi.org/10.4018/978-1-59140-989-2.CH035","url":null,"abstract":"As many enterprise and industrial content management techniques are moving towards a distributed model, the need to exchange data between heterogeneous data sources in a seamless fashion is constantly increasing. These heterogeneous data sources could arise from server groups from different manufacturers or databases at different sites with their own schemas. Since its introduction in 1996, eXtensible Markup Language (XML) (W3C-XML, 2004) has established itself as the open, presentation independent data representation and exchange medium. XML provides a mechanism for seamless data exchange in many industrial informatics settings. In addition, XML is also emerging as the dominant standard for storing, describing, representing, and interchanging data among various enterprises systems and databases in the context of complex Web enterprises information systems (EIS). For such Web EIS (such as e-commerce and portals) to be successful, it is important to apply a high level, model-driven solution to design and implementation techniques that are capable of handling heterogonous schemas and documents. For this, we need a methodology that provides a higher level of abstraction of the domain in question, with rigorously defined standards that are to be more widely understood by all stakeholders of the system. With the introduction of XML Schema, which provides rich facilities for constraining, describing, and defining enterprise XML content, the XML technologies provide a good platform (and the flexibility) for modelling, designing and representing complex enterprise contents for building successful EIS. For example, a particular user may want to get an appropriate view of such XML data at a given location or level of the company. One way to handle such a complex task is to build semantic-aware enterprise Web sites and Web portals (Nakano, 2002; Tatnall, 2004). Furthermore, XML and user-aware dynamic user interface design technologies have gained a foothold in mainstream Web engineering research. With the introduction of XML schema (W3C-XSD, 2001) and related querying technologies, XML has established itself as the language for the Web. To enhance XML’s ability to include high level modelling capabilities and data abstraction, various supplementary techniques have been proposed by research communities including automated schemata transformation based design methodologies (Feng, Chang, & Dillon, 2003), view mechanisms and a high-level XML view design methodology (Rajugan, Chang, Dillon, & Feng, 2005, 2006). We argue that, unlike old Web portal designs, these new technologies and methodologies provide an added enhancement for developing meaningful Web portals. In addition, new security and access control mechanisms for XML and the Web have improved trustworthiness and collaboration among distributed Web communities and enterprises (Nakano, 2002; Steele, Gardner, Chandra, & Dillon, 2005). This results in design and development of distributed portals for inform","PeriodicalId":349521,"journal":{"name":"Encyclopedia of Portal Technologies and Applications","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116809207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}