Data DNA: The Next Generation of Statistical Metadata

Describes the components of a complete statistical metadata system and suggests ways to create and structure metadata for better access and understanding of data sets by diverse users

Survey over Existing Query and Transformation Languages

A widely acknowledged obstacle for realizing the vision of the Semantic Web is the inability of many current Semantic Web approaches to cope with data available in such diverging representation formalisms as XML, RDF, or Topic Maps. A common query language is the first step to allow transparent access to data in any of these formats. To further the understanding of the requirements and approaches proposed for query languages in the conventional as well as the Semantic Web, this report surveys a large number of query languages for accessing XML, RDF, or Topic Maps. This is the first systematic survey to consider query languages from all these areas. From the detailed survey of these query languages, a common classification scheme is derived that is useful for understanding and differentiating languages within and among all three areas

A comparison of production processes for OER

In most cases the initial production and publication of OER is undertaken by a University and funded through a special project with grants from external bodies. In this phase, OER are developed both from scratch or derived from existing Higher Education courses. After this project phase, the ongoing development and publication of OER continues and the question of the management and upgrading of the OER comes into focus. The costs of producing and upgrading OER are an important factor in devising a sustainable process. Therefore, it is necessary to develop an efficient process for the continuing production, publication and maintenance of OER. To learn more about influencing factors of production process efficiency we have compared the production processes of two institutions, the Open University UK (OU-UK) and the Open Universiteit Netherlands (OU-NL), both in the initial project phase (OpenLearn for OU-UK and OpenER for OU-NL) and the post initial phase. We aim to identify the differences and commonalities and the influence of these on the efficiency of the production processes. The main difference between the two Universities is the adoption of state-of-the-art (XML) standard to deliver to different channels at OU-UK. At OU-NL this adoption has just started. Valuable lessons learned in the project phase for the post initial phase are clear specification of requirements for selection of an open course and utilization of technologies already being used for regular materials production. Both institutions firstly drew upon the existing expertise and capabilities for educational resource production being used for regular courses. But rather than strictly follow exactly the same process and possibly compromise the more mission critical development of resources for students both institutions chose to experiment or adapt this process to help provide lessons that might be taken back into regular materials production. Once these lessons and experiences had been gained both open universities sought to reduce the costs of dealing with legacy or de novo educational resources by integrating identification, production and publication within the regular curriculum and course development processes

An authoring tool for structuring and annotating on-line educational courses : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Computer Science at Massey University

This thesis studies the design and prototype implementation of a new web-based course authoring system for the Technology Integrated Learning Environment (TILE) project. The TILE authoring system edits the course structure and allows the author to annotate the course structure with meta-data. It makes extensive use of XML technology to communicate structured data across the Internet, as well as for both local and web-side databases. The Authoring tool is designed to support development by multiple authors and has check-in and check - out, as well as version control facilities. It also provides an interface for adopting other multimedia tools such as AudioGraph. The tool has an easy-to-use graphical user interface. The technical problems that have been solved in this project include issues such as cross-platform support, drag and drop functionality using JDK l.l.8, etc. System environments, such as relational database set up, XML database set up, Java swing set up in Mac also have been discussed. The authoring system interface analysis, database analysis and function analysis have been completed for the complete the system as specified. An intermediate system, designed to a reduced specification, has been implemented as a prototype and details of this system, which can work independently of the TILE delivery system, are included. The Full TILE authoring system including InstantDB database access also has been partially implemented. The prototype application has also has been tested on the PC platform

Mediated data integration and transformation for web service-based software architectures

Service-oriented architecture using XML-based web services has been widely accepted by many organisations as the standard infrastructure to integrate heterogeneous and autonomous data sources. As a result, many Web service providers are built up on top of the data sources to share the data by supporting provided and required interfaces and methods of data access in a unified manner. In the context of data integration, problems arise when Web services are assembled to deliver an integrated view of data, adaptable to the specific needs of individual clients and providers. Traditional approaches of data integration and transformation are not suitable to automate the construction of connectors dedicated to connect selected Web services to render integrated and tailored views of data. We propose a declarative approach that addresses the oftenneglected data integration and adaptivity aspects of serviceoriented architecture

Online Financial Reporting Disclosure Requirements Across Central and Eastern European Countries

The business community has admitted that the accounting is “the language of business”. They are using the accounting to communicate the existence and the evolution of the financial situation and also of the performance for the economical entities. Financial information is a form of a language. The purpose of this paper is to investigate the various elements of financial reporting frameworks and practice in the context of the Internet. The Internet has emerged as a recent medium of presentation of corporate information in the United States, Germany, Great Britain, but also in the Central and Eastern European Countries. Actual disclosure by companies from CEE was investigated in order to compare de jure and the facto financial reporting disclosure.financial reporting, Internet, disclosure, CEE countries

The Metropolitan Travel Survey Archive: A Case Study in Archiving

This paper summarizes research on standards for archiving travel survey data. It then describes some of the efforts at organizing data and developing metadata. The development of metadata standards used for documenting datasets using DDI (Data Documentation Initiative) for DTD (Document Type Definitions) is described. A case, applying these approaches to a US Metropolitan Travel Survey Archive is presented. The Metropolitan Travel Survey Archive, housed at the University of Minnesota, now contains over 60 surveys from almost 30 metropolitan areas. The paper concludes with some recommendations for archiving data.Travel Surveys, Activity Surveys, Archiving

Grids and the Virtual Observatory

We consider several projects from astronomy that benefit from the Grid paradigm and associated technology, many of which involve either massive datasets or the federation of multiple datasets. We cover image computation (mosaicking, multi-wavelength images, and synoptic surveys); database computation (representation through XML, data mining, and visualization); and semantic interoperability (publishing, ontologies, directories, and service descriptions)

Integrating web services into data intensive web sites

Designing web sites is a complex task. Ad-hoc rapid prototyping easily leads to unsatisfactory results, e.g. poor maintainability and extensibility. However, existing web design frameworks focus exclusively on data presentation: the development of specific functionalities is still achieved through low-level programming. In this paper we address this issue by describing our work on the integration of (semantic) web services into a web design framework, OntoWeaver. The resulting architecture, OntoWeaver-S, supports rapid prototyping of service centred data-intensive web sites, which allow access to remote web services. In particular, OntoWeaver-S is integrated with a comprehensive web service platform, IRS-II, for the specification, discovery, and execution of web services. Moreover, it employs a set of comprehensive site ontologies to model and represent all aspects of service-centred data-intensive web sites, and thus is able to offer high level support for the design and development process