Theses and Dissertations Collection

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Browsing Theses and Dissertations Collection by Subject "Data warehouse"

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    Ommerce alerter for web information changes & semi automatic web wrapper
    (University of Essex, 2005) George, Henry
    Data extraction is an area of computer science that will come to play an increasingly important role in the near future. This project provides two separate software applications that can help in the understanding of the various aspects of data extraction and the analysis of the different problems and tentative solutions. First is the E-Commerce alerter system, a program which is developed to monitor the change of products on an E-commerce site (www.eBay.com Auctions). The program extracts items from the www.eBay.com site and stores them in a Relational database. It is scheduled to check for updates in information on the site every twelve hours. Also, it monitors the stored data for the purpose of reporting updates to the users who request them. If any changes are found, the user is informed via electronic mail. Secondly, a semi automatic wrapper has been developed, which is a too! to assist system developer to wrap HTML pages into XML Documents. The tool helps in extracting the items of interest from an hind source page. The extracted data can he used by another application because it is stored in XML formal, which is well structured. The technique used in developing semi automatic wrapper is tag Set Progression Grid (TpGrid) which is the fingerprint representation of an hind page.
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    Web enabled data warehouse: banking system case study
    (Osmania Univesrsity-India, 2004) Sanga, Camilius; Elias, Mturi
    This thesis is an explorative study of the early implementations of the corporate data warehouse that was intended for managers, executives, business analysts, and a few other high-level employees as a tool for analysis and decision­ making. Information from the data warehouse was delivered to this group of users in a client/server environment. But today’s data warehouses are no longer confined to a select group of internal users. Under present conditions, corporations need to increase the productivity of all the members in the corporation’s value chain. Useful information the corporate data warehouse must be provided not only to the employees but also to customers, suppliers and all other business partners. So today’s business climate, you need to open your data warehouse to the entire community of users in the value chain, perhaps also to the general public. This is a tall order. How can you accomplish this requirement to serve information to thousands of users in 24*7 mode? How can you do this without incurring exorbitant costs for information delivery? The Internet along with Web technology is the answer. The web will be your primary information delivery mechanism. When you bring your data warehouse to the Web, from the point of view of the users, the key requirements are: self-service data access, interactive analysis, high data quality, high availability and performance, zero-administration client (thin client technology such as Java applets), tight security and unified metadata.