... 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
... 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
... 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
... 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
... 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
... 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
