Thesis (M.S. in Computer Science)--Naval Postgraduate School, September 2002. / Thesis advisor(s): James Bret Michael, Michael R. Murrah. Includes bibliographical references (p. 83). Also available online.

Thesis (Ph. D.)--Virginia Commonwealth University, 2009. / Prepared for: School of Business. Bibliography: leaves 139-169. Also available online via the Internet.

Thesis (MInt (Prof)) -- University of Pretoria, 2008. / Abstract in English.

Thesis (Ph. D.)--Texas Woman's University, 1997. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2006. / Includes bibliographical references (leaves 104-110). Also available in electronic version.

M.Bibl. / Information is increasingly recognised and managed as a resource. In any organisation it contribute directly to the performance of all functions. The purpose of this study was to use Burk and Horton's methodology to conduct an information audit to an assurance enterprise to identify the company's strategic information. This was to prove the importance of information as a corporate resource for competitive advantage. A literature study was undertaken as well as an overview of the method and results of an information audit. The information audit was only done for the library and the law administration department. The literature study gave the necessary overview of the information audit method, but the empirical investigation provided the value of the information. Information was collected on three different forms. The first was the inventory which was divided in three sections: sources, services and systems. The second form was the file surrogate card, which contained all the information of the law files. The third form was a questionnaire to establish the information needs of the users as well as the availability of the information they need to fulfil their tasks. The information flow was also monitored in the company. Although the "lnfoMap" -method of Burk and Horton was used, it was discovered that this method had several shortcomings regarding the practical application, such as the calculation of the monetary value of the information. After an analysis of the research results it is evident from the shortcomings and needs that have come to light regarding the management, objectives, use, value and cost of information assets that it is necessary to formulates an information policy and that the conclusion can be drawn that the information audit provides meaningful data that can serve as the starting point for developing a formal information management plan for this insurance company.

M. Inf. / Enterprises are becoming more dependent on information than ever before and, in this new millennium, the survival and success of these enterprises will highly depend on the ability to manage information as a resource for competitive advantage. This study is concerned with establishing the extent to which information management is practiced in financial institutions in Botswana. The main problem under investigation is the importance of information management within an enterprise and to ascertain how information can ensure competitive advantage in an enterprise. In the first four chapters, a literature survey is done to get a better understanding of what information management is and how information management can transform business and how information management can be used as a source of sustainable competitive advantage. The second part of the study is the empirical survey where qualitative research was conducted on financial institutions in Botswana, including commercial banks and insurance companies. The aim of the research was to determine the status of information management in these institutions as well as to investigate what people generally understand the concept information management- to mean. It was further investigated if at all information management was an issue in the enterprise culture of Botswana and if the concerned institutions regard information management as a source for competitive advantage. Structured interviews were conducted with top management in ten business institutions. The data obtained from the interviews was analysed and interpreted according to the grounded theory. The findings of the research revealed that information management, as a formalised concept, is fairly new to most business enterprise managers, and that there is no common understanding of the concept. It is however evident that most business managers accept the fact that information management is a necessary condition for ensuring the sustainability of their business enterprises. Most of them acknowledged that information is very critical for the survival of the business and for staying ahead of others. It is recommended that enterprises should adopt a holistic approach towards information management. Business enterprises should employ people with proper information management skills and trained personnel in this area.

The use of electronic services results in the generation of vast amounts of Online Resource Usage (ORU) data. ORU data typically consists of user login, printing and executed process information. The structure of this type of data restricts the ability of decision makers to effectively and efficiently analyse ORU data. A data warehouse (DW) structure is required which satisfies an organisation’s information requirements. In order to design a DW structure a methodology is needed to provide a design template according to acknowledged practices. The aim of this research was to primarily propose a methodology specifically for the design of a DW structure to support the efficient and effective analysis of ORU data. A variety of relevant DW structure design methodologies were investigated and a number of limitations were identified. These methodologies do not provide methodological support for metadata documentation, physical design and implementation. The most comprehensive methodology identified in the investigation was modified and the Adapted Triple-Driven DW Structure Design Methodology (ATDM) was proposed. The ATDM was successfully applied to the information and communication technology services (ICTS) department of the Nelson Mandela Metropolitan University as the case study for this research. The proposed ATDM consists of different phases which include a requirements analysis phase that was adapted from the identified comprehensive methodology. A physical design and an implementation phase were included in the ATDM. The ATDM was successfully applied to the ICTS case study as a proof of concept. The application of the ATDM to ICTS resulted in the generation and documentation of semantic and technical metadata which describes the DW structure derived from the application of the ATDM at a logical and physical level respectively. The implementation phase was applied using the Microsoft SQL Server integrated tool to obtain an implemented DW structure for ICTS that is described by technical metadata at an implementation level. This research has shown that the ATDM can be successfully applied to obtain an effective and efficient DW structure for analysing ORU data. The ATDM provides guidelines to develop a DW structure for ORU data and future research includes the generalisation of the ATDM to accommodate various domains and different data types.

XML has become the standard way for representing and transforming data over the World Wide Web. The problem with XML documents is that they have a very high ratio of redundancy, which makes these documents demanding large storage capacity and high network band-width for transmission. Because of their extensive use, XML documents could be retrieved according to vague queries by naive users with poor background in writing XPath query. The aim of this thesis is to present the design of a system named “XML Compressing and Vague Querying (XCVQ)” which has the ability of compressing the XML document and retrieving the required information from the compressed version with less decompression required according to vague queries. XCVQ first compressed the XML document by separating its data into containers and then compress these containers using the GZip compressor. The compressed file could be retrieved if a vague query is submitted without the need to decompress the whole file. For the purpose of processing the vague queries, XCVQ decomposes the query according to the relevant documents and then a second decomposition stage is made according to the relevant containers. Only the required information is decompressed and submitted to the user. To the best of our knowledge, XCVQ is the first XML compressor that has the ability to process vague queries. The average compression ratio of the designed compressor is around 78% which may be considered competitive compared to other queriable XML compressors. Based on several experiments, the query processor part had the ability to answer different kinds of vague queries ranging from simple exact match queries to complex ones that require retrieving information from several compressed XML documents.

The problem with e-texts are related to the way texts are displayed on a screen, with multiple and different aspects that affect legibility, making readers prefer to read a paper format rather than e-resources. This research describes the factors that affect the legibility of online texts aimed at obtaining a better understanding of the usability of electronic Arabic texts for learning purposes within the field of electronic reading; mainly reading Arabic texts for students aged 9 to 13. This study sets out three particular aims: (1) building a reading strategy for Arabic schoolbook in both formats electronic and paper format based on users’ cognitive and behavioural processes; (2) defining the influence of three typographical variables that affect reading Arabic texts on a screen (font size, font-type and line length); and (3) studying the efficiency of reading Arabic texts and the related factors impacting the efficiency of reading and comprehension. Based on the nature of the research questions and objectives, positivism and phenomenology are adopted as the underlying philosophy for this research. The empirical research was divided into three phases; the first phase focused on collecting data about using the internet among students in primary schools by means of a questionnaire. This has helped in the selection of samples and determined the extent of the students’ reluctance to read from a screen. The second phase was to investigate the reading process of school book in two formats [ paper and electronic format] to build reading model based on users’ cognitive and behavioural processes. The third phase was to examine the factors that affect negatively the usability of electronic texts by examining three issues: font size [10, 14, 16 and 18], font type [Arabic traditional, Arial, Times New Roman, Simplified Arabic, and Courier New], and line length [single column and double columns]. Observation was applied as a tool to collect the data. The study has made a significant contribution to the understanding of electronic reading of Arabic language. This contribution addressed five aspects: (1) Two models of reading process for schoolbook using Arabic language were built according to users’ interaction with the school textbook in two formats ( electronic and paper). These models will not only help define the interaction amongst users and e-books, but will also help designers to understand user behaviour of e-books and thereby to establish the most appropriate functions/features when building an e-book interface. (2) Identify the optimal font size for reading an Arabic script from screen by children aged 9 to 13. (3) Based on collecting data from experiments (2) and (3) and comparing this date with other researches that have done in the same field, new model explains the interaction between three topographical variables [font size, font type and line length] and their relationships with independent variables were provided. (4) Test a new display technique to improve the legibility of reading Arabic online texts by using colour to increase the ability to focus vision when moving from one line to another so as to improve the screen display. And (5) according to quantitative and qualitative several of the rules were recommended for designers and educators to follow when designing and presenting Arabic text on screen. On the other hand, some recommendations for future research have been derived from this thesis, such as the following. (1) Investigating the effect of the colour factor on improving the legibility of Arabic texts on screen for children, e.g. using different colours to distinguish between dots and vowels. (2) Exploring and developing an e-reading model based on all the factors recorded in the empirical studies in the reading field which will lead to building a theory on e- reading. (3) Investigating the influence of a variable effect reading process and the variables that have a positive or negative impact on it. (4) Applying a model that used colour to increase the ability to focus using different age-range and type of information such as journals or books.