Web Portal Research Issues

Author(s):  
Arthur Tatnall

In general terms, a portal can be seen as “a door, gate or entrance” (Macquarie Library, 1981), and in its simplest form the word just means a gateway; however, it is often a gateway to somewhere other than just to the next room or street. The Oxford Reference Dictionary defines a portal as “a doorway or gate etc, especially a large and elaborate one” (Pearsall & Trumble, 1996). In the context of this article, a Web portal is considered to be a special Internet (or intranet) site designed to act as a gateway to give access to other specific sites. A Web portal can be said to aggregate information from multiple sources and make this information available to various users (Tatnall, 2005c). It consists of a Web site that can be used to find and gain access to other sites, but also to provide the services of a guide that can help to protect the user from the chaos of the Internet and direct him or her toward a specific goal. More generally, however, a portal should be seen as providing a gateway not just to sites on the Web, but to all network-accessible resources, whether involving intranets, extranets, or the Internet. In other words, a portal offers centralised access to all relevant content and applications.

Author(s):  
Arthur Tatnall

The term Web portal is overused and takes on a different meaning depending on the view of the author. This article will investigate the concept of a portal, the various types of portal, and how portals are currently being used. A Yahoo search of the Web in February 2004 revealed 85 million entries for the word portal, and even allowing for a considerable degree of overuse and overlap, portals are seen everywhere and span a bewildering range of topics and interest areas. It would be difficult to make any use of the Web without encountering one. In general terms, unrelated to the World Wide Web, the Macquarie Dictionary defines a portal as “a door, gate or entrance” (Macquarie Library, 1981, p. 1346). More specifically, a Web portal is seen as a special Internet (or intranet) site designed to act as a gateway to give access to other sites (Tatnall 2005a). A portal aggregates information from multiple sources and makes that information available to various users. In other words a portal is an all-in-one Web site whose prime purpose is to find, and to gain access to other sites, but also one that provides the services of a guide that can help to protect the user from the chaos of the Internet and direct them towards an eventual goal. More generally, however, a portal should be seen as providing a gateway, not just to sites on the Web, but to all network-accessible resources, whether involving intranets, extranets, or the Internet. In other words a portal offers centralised access to all relevant content and applications (Tatnall 2005b). Historically, the Web-portal concept probably developed out of search engine sites such as Yahoo!, Excite, and Lycos, which can now be classified as first-generation portals. These sites, however, quickly evolved into sites providing additional services such as e-mail, stock quotes, news, and community building rather than just search capabilities (Rao 2001). Eckerson (1999) outlines four generations of portals whose focus, in each case, is: generic, personalised, application, and role. The success of a portal depends on its ability to provide a base-site that users will keep returning to after accessing other related sites. As an entranceway onto the Web (or an intranet) it should be a preferred starting point for many of the things that a particular user wants to do there. A useful goal for those setting up a portal is to have it designated by many users as their browser start-up page.


Author(s):  
Theodoros Evdoridis

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).


Author(s):  
Issam Abdelbaki ◽  
El habib Benlahmar ◽  
El Houssine Labriji

<p class="Abstract"><span lang="EN-US">Searching for information on the Internet is not only an activity newly rediscovered, but also a strategic tool to achieve a wide variety of information. Indeed, it’s extremely important to know how to find the information quickly and efficiently. Unfortunately, the Web is so huge and so little structured, that gathering precise, fair and useful information becomes an expensive task. In order to define an information retrieval tool (meta search engine) that brings together multiple sources of information search, interest must be credited to the merger phase of search engines results. On the other hand, information search systems tend primarily to model the user with a profile and then to integrate it into the information access chain, to better meet its specific needs. </span></p><p class="Abstract"><span lang="EN-US">This paper presents a custom fusion method based on Borda method and values retrieved from the user profile. We evaluated our approach on multiple domains and we present some experimental results.</span></p>


Author(s):  
Martin C. J. Elton ◽  
John Carey

This chapter describes how relevant the study of new media and telecommunication innovations, such as videotex, has been to research on developments around the Internet and the Web. It elaborates the distinctions between the Internet and the Web. Additionally, some of the more interesting links between research issues from long ago (in Internet time!) and those of significance today are explained. Online databases developed the initial designs for information services that would appear on the Web. CompuServe and The Source are the best-known ASCII videotex services. These videotex services provide links to other organisations with which the companies did business. The Internet was initially an infrastructure that efficiently transmitted data and at very low cost; fairly soon, it also became able to transmit asynchronous and real-time voice and video. The Internet community resolved the problem of interlinking disparate computer systems so as to produce new and synergistic wholes.


Author(s):  
Tanko Ishaya

Developments in the Internet and the World Wide Web (WWW) technologies have led to an evolving trend in Electronic learning (e-learning). E-learning is now one of the most fast growing trends in computing and higher education (Ishaya & Wood, 2005) and certainly becoming a dominant way of learning in workplace settings across other organizations (Mungania, 2003). From its initial roots as an information-sharing tool, the Web has seen an exponential growth into a myriad of applications, ranging from very serious e-business to pure leisure environments. Likewise, research into technology support for education has quickly recognized the potential and possibilities for using the Web as a learning tool (Ishaya, Jenkins, & Goussios, 2002). Thus, the Web technology is now an established medium for promoting student learning, and today there are a great many online learning materials, tutorials, and courses supported by different learning tools with varying levels of complexity. It can be observed that there are many colleges and universities, each of which teaches certain concepts based on defined principles that remain constant from institution to institution. This results in thousands of similar descriptions of the same concept. This means that institutions spend a lot of resources producing multiple versions of the same learning objects that could be shared at much lower cost. The Internet is a ubiquitous supporting environment for sharing of learning materials. As a consequence, many institutions take advantage of the Internet to provide online courses (Ishaya et al., 2002; Jack, Bonk, & Jacobs, 2002; Manouselis, Panagiotou, Psichidou, & Sampson, 2002). Many other agencies have started offering smaller and more portable learning materials defined as learning objects (Harris, 1999; POMETEUS, 2002). Common standards for metadata, learning objects, and services are mandatory for the success of Web-based learning, which is why the creation of such standards for learning objects and related standards has being one of focus for research and development within the past few years. This includes the creation of accredited standards from the IEEE Learning Technology Standards Committee (LTSC) for Learning Object Metadata (LOM), Sharable Content Object Reference Model (SCORM), Instructional Management System (IMS), and so on. All these metadata models define how learning materials can be described in an interoperable way. There have also been intensive developments in the area of e-learning technology and the wide variety of learning environments from many different vendors (e.g., Sakai, Moodle, and Blackboard). While most of these approaches provide a means for describing, sharing, and reusing resources, the concept of interoperability and heterogeneous access to content chunks is yet to be fully achieved. This results in thousands of similar descriptions of the same concept, even within the same learning management system (LMS), and because these concepts may have been defined using different standards, they are not interoperable. What is required therefore is a mechanism and infrastructure for supporting a interoperable system of individual components that can be assembled by mixing and matching content from multiple sources to satisfy individual learner’s requirements. See Wood and Ishaya (2005) for a personality-based approach for building learner profiles.


2010 ◽  
pp. 777-792
Author(s):  
Angélica Caro ◽  
Coral Calero ◽  
Mario Piattini

Web portals are Internet-based applications that provide a big amount of data. The data consumer who uses the data given by these applications needs to assess data quality. Due to the relevance of data quality on the Web together with the fact that DQ needs to be assessed within the context in which data are generated, data quality models specific to this context are necessary. In this chapter, we will introduce a model for data quality in Web portals (PDQM). PDQM has been built upon the foundation of three key aspects: (1) a set of Web data quality attributes identified in the literature in this area, (2) data quality expectations of data consumers on the Internet, and (3) the functionalities that a Web portal may offer its users.


Web Portals ◽  
2011 ◽  
pp. 1-14 ◽  
Author(s):  
Arthur Tatnall

In general terms a portal is just a gateway, and a Web portal can be seen as a gateway to the information and services on the Web. This chapter explores the definition of the word “portal” and attempts a categorisation of the various types of Web portals. It outlines some of the many uses for portals and shows that the portal concept is equally useful for accessing corporate intranets as for the public Internet. In conclusion the chapter looks at the proposition that the portal is dead and finds that any announcement to this effect is very much premature. Portals are everywhere and are likely to grow to even greater importance in the future.


Author(s):  
Angélica Caro ◽  
Coral Calero ◽  
Mario Piattini

Web portals are Internet-based applications that provide a big amount of data. The data consumer who uses the data given by these applications needs to assess data quality. Due to the relevance of data quality on the Web together with the fact that DQ needs to be assessed within the context in which data are generated, data quality models specific to this context are necessary. In this chapter, we will introduce a model for data quality in Web portals (PDQM). PDQM has been built upon the foundation of three key aspects: (1) a set of Web data quality attributes identified in the literature in this area, (2) data quality expectations of data consumers on the Internet, and (3) the functionalities that a Web portal may offer its users.


Author(s):  
Américo Sampaio

The growth of the Internet and the World Wide Web has contributed to significant changes in many areas of our society. The Web has provided new ways of doing business, and many companies have been offering new services as well as migrating their systems to the Web. The main goal of the first Web sites was to facilitate the sharing of information between computers around the world. These Web sites were mainly composed of simple hypertext documents containing information in text format and links to other documents that could be spread all over the world. The first users of this new technology were university researchers interested in some easier form of publishing their work, and also searching for other interesting research sources from other universities.


Author(s):  
Heather Fulford

The purpose of this article is to demonstrate the role played by the establishment, in a UK village, of a local community Web portal on the Internet adoption decisions of small businesses in the village. The article reports on some of the findings of an ongoing study of this local community Web portal, focusing specifically on those small businesses that had, prior to the launch of the Web portal, made a decision not to adopt the Internet into their business operations. The barriers these nonadopting small businesses perceived to Internet adoption are identified, and the impacts their portal presence had on their subsequent choice of Internet adoption pathway are discussed. Before presenting the research design and pertinent findings of this local community Web portal project, some background details about the study and the local community Web portal are provided.


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