... support scheme is distinguished from previous mechanisms in that it is primarily concerned with preserving existing database objects and ...
Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment
... heart of model driven engineering (MDE) and can be used in many different application scenarios. For instance, model transformations ... that automates the development of model transformations. In this paper we propose a novel approach that uses matching transformations ...
Publication - huliganka - 04/17/2013 - 11:16 - 0 comments - 1 attachment
... 50 - 99 In this paper, we address the issues related to the evolution and maintenance ... sources. The data of the data warehouse is used primarily in organizational decision-making and may be strategic. Therefore, the schema ...
Publication - erhard - 04/17/2013 - 09:05 - 0 comments - 0 attachments
... validation. These criteria are important to be considered in designing reverse engineering methods, so that they can perform reverse ...
Publication - cat - 04/17/2013 - 08:27 - 0 comments - 0 attachments
... database reorganizations due to schema modification in object-oriented systems, since these are expensive operations and they ... show that data independence, which is a neglected concept in object databases, helps to avoid reorganizations in case of capacity ...
Publication - cat - 04/17/2013 - 07:05 - 0 comments - 0 attachments
... We describe examples of problems of semantic heterogeneity in databases due to “domain evolution”, as it occurs in both single- and multidatabase systems. These problems occur when the ...
Publication - cat - 04/17/2013 - 06:27 - 0 comments - 1 attachment
... 210.74 KB Ontologies are being used nowadays in many areas, including bioinformatics. One of the issues in ontology research is the aligning and merging of ontologies. Tools have ...
Publication - cat - 04/16/2013 - 21:38 - 0 comments - 1 attachment
... conversion functions: immediate or lazy database updates. In this paper, we concentrate our attention to the definition of implementation ...
Publication - cat - 04/16/2013 - 19:38 - 0 comments - 1 attachment
... 2.79 MB Continuously arising new trends in information technology and developments at the (e–business) market let ... However, if this technology shall be applicable in practice it must be possible to change running business processes even at ...
Publication - cat - 04/16/2013 - 19:05 - 0 comments - 1 attachment
... tools should be well suited for exchanging information in a semantically meaningful way. Unfortunately, they suffer from two ... easily extensible data management architecture in which any user can contribute new data, schema information, or even mappings ... paper considers the problem of schema mediation in a PDMS. Our first contribution is a flexible language for mediating between ...
Publication - admin - 04/16/2013 - 17:27 - 0 comments - 1 attachment
... 929.03 KB . In this paper, we propose to extend current practice in schema matching with the simultaneous use of top-K schema mappings rather ... category), taking into account the imprecision inherent in the schema matching process. The essence of this method is the simultaneous ...
Publication - admin - 04/16/2013 - 15:05 - 0 comments - 1 attachment
... databases arises from a number of critical tasks in data management. These tasks are complicated by schema evolution in the underlying databases and by the presence of non-standard database ... specifying such transformations, and its implementation in a system called Morphase (an “enzyme” for morphing data). WOL is ...
Publication - erhard - 04/16/2013 - 12:16 - 0 comments - 1 attachment
Authors: Gray, J; Lin, Y; Zhang, J Author: Gray, J Lin, Y ...
Publication - cat - 04/16/2013 - 08:05 - 0 comments - 0 attachments
... merging, also called view integration, is a key problem in conceptual modeling. Large models are often constructed and accessed by ... sources and to the merge assumptions related to them. In this paper, we present a framework for merging incomplete and inconsistent ...
Publication - cat - 04/16/2013 - 07:05 - 0 comments - 0 attachments
... development. On the schema level, a firm restriction in this evolution is that it can only be done by evolving class hierarchies ... subclassing. We show a unified approach to class evolution in object-oriented databases, where class hierarchies are allowed to grow in ...
Publication - cat - 04/16/2013 - 05:27 - 0 comments - 0 attachments
... 50 - 99 In this paper we present an approach to model ontology evolution as ... by a set of rules defining ontology consistency. In this way we allow a user to specify an arbitrary request declaratively and ...
Publication - cat - 04/16/2013 - 05:05 - 0 comments - 0 attachments
... representation and exchange on the World Wide Web, e.g., in B2B e-commerce. Modern enterprises need to combine data from many sources in order to answer important business questions, creating a need for ...
Publication - cat - 04/16/2013 - 04:38 - 0 comments - 1 attachment
... construction and maintenance of data warehouses (views) in large-scale environments composed of numerous distributed and evolving ... the problem of schema changes of ISs, while previous work in this area, such as incremental view maintenance, has mainly dealt with data ...
Publication - cat - 04/16/2013 - 02:27 - 0 comments - 0 attachments
... with multiple active instances is a complex issue. In this paper, we present an analysis of workflow changes in relation to business process change, and present a classification of ...
Publication - cat - 04/16/2013 - 01:27 - 0 comments - 0 attachments
... are becoming increasingly prevalent and important in a wide range of e-commerce applications. E-commerce applications are using ...
Publication - cat - 04/16/2013 - 01:16 - 0 comments - 0 attachments
... IEEE 11th Int. Workshop on Research Issues in Data Engineering (RIDE) URL: ... as a standard format for data representation on the web. In many applications, specific document type definitions (DTDs) are designed to ...
Publication - cat - 04/15/2013 - 23:49 - 0 comments - 0 attachments
