the main purpose of this paper is identifying the current situation of iranian digital libraries in terms of interoperability abilities and proposing an interoperability solution for iranian digital libraries. analytical survey is used in this research. in fact, questionnaire and observation were used for collecting data about the current situation of iranian digital library applications. the g...

Relational databases get more and more employed in order to store the contents of a web site. At the same time, XML is fast emerging as the dominant standard at the hypertext level of web site management, describing pages and links between them. Thus, the integration of XML with relational database systems to enable the storage, retrieval and update of XML documents is of major importance. Also...

Key message We present a relational database containing compositional and structural characteristics of 575 permanent 100 m 2 shrubland plots distributed in the NE Iberian peninsula. The datasets provide valuable information about fuels to improve fire danger prediction, study vegetation dynamics relation drought or test aerial-based methodologies with ground-based information. Dataset access i...

The organised storage of spectral data described by metadata is important for long-term use and data sharing with other scientists. Metadata describing the sampling environment, geometry and measurement process serves to evaluate the suitability of existing data sets for new applications. There is a need for spectral databases that serve as repositories for spectral field campaign and reference...

Provenance management has become increasingly important to support scientific discovery reproducibility, result interpretation, and problem diagnosis in scientific workflow environments. This paper proposes an approach to provenance management that seamlessly integrates the interoperability, extensibility, and reasoning advantages of Semantic Web technologies with the storage and querying power...

Enterprise-level applications are becoming complex with the need for event and stream processing, multiple query processing and data analysis over heterogeneous data sources such as relational databases and XML data. Such applications require access to the metadata information for these different data sources. This paper discusses the design and implementation of a servicebased dynamic metadata...

Abstract The problem of transferring data from a database one type to another is relevant today due the increase in volumes and complexity tasks solved various fields human activity. existing databases are less satisfying needs users. New types appear that more suitable for solving large-scale problems. This article proposes an algorithm optimizing document structure based on metadata about dis...

In this paper we outline the limitations of the traditional relational database metadata model and compare them against the requirements of the framework for business applications. We describe the database dictionary component of a software framework for development of business applications. Its feasibility is proved in practice by development of several software applications and their successf...

This paper discusses a generic query tool that enables an end user to query a metadata store through filters that impose search criteria on attributes. The Metadata Query Tool (MQT) is generic in the sense that it dynamically creates its user interface, based on configuration files that define the metadata scheme and the query functionalities. Although the tool can in principle be used to query...