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Scientific data/documents play a significant role in academic research and industrial applications. In the era of information fusion, building knowledge and content management systems is necessary, particularly in multidisciplinary and interdisciplinary research. This paper discusses an overview about the impact of XML in knowledge and content management systems in science and technology; extends to the integration and implementation including the discussions of infrastructures, methodologies, some typical examples in case studies; finally, it ends with future research and development in a new challenge in information and knowledge engineering. It concluded that XML will make significant contributions to the next generation in information processing for scientific content management systems.

Trace Base Management System (TBMS) offers processing and querying functionalities for traces that may be of interest to users of tracked systems. Our goal is to ensure the importing of various external traces into kernel for Trace-Based System (kTBS), which is a TBMS developed in the LIRIS laboratory. To overcome the problem of traces heterogeneity, we propose to define a generic collector. To this end, a user with enough knowledge of the tracked system is prompted to define its kTBS trace model and correspondences between the elements of this model and the elements of the trace to import. The system generalises the mappings previously elicited by the user through interaction to create mapping rules. After this phase, the collector will generate modelled traces from the existing ones and the already defined mapping rules.

The design and implementation of a Native XML database called XManager is presented in this paper. XManager covers most of the native XML database features. XManager implements a filter scheme based on XML, which makes XManager having a strong micro kernel. Based on this scheme, XManager found an open environment; any functions can be added as plug-ins. This scheme also gives XManager good performance. The experimental results show that XManager is much better than the well-known apache XML database XIndice on indexing and querying collection of XML documents.