%0 Conference Paper %B Thirteenth International Conference on Scientific and Statistical Database Management, 2001. SSDBM 2001. Proceedings %D 2001 %T Integrating distributed scientific data sources with MOCHA and XRoaster %A Rodriguez-Martinez,M. %A Roussopoulos, Nick %A McGann,J. M %A Kelley,S. %A Mokwa,J. %A White,B. %A Jala,J. %K client-server systems %K data sets %K data sites %K Databases %K Distributed computing %K distributed databases %K distributed scientific data source integration %K Educational institutions %K graphical tool %K hypermedia markup languages %K IP networks %K java %K Large-scale systems %K Maintenance engineering %K meta data %K metadata %K Middleware %K middleware system %K MOCHA %K Query processing %K remote sites %K scientific information systems %K user-defined types %K visual programming %K XML %K XML metadata elements %K XML-based framework %K XRoaster %X MOCHA is a novel middleware system for integrating distributed data sources that we have developed at the University of Maryland. MOCHA is based on the idea that the code that implements user-defined types and functions should be automatically deployed to remote sites by the middleware system itself. To this end, we have developed an XML-based framework to specify metadata about data sites, data sets, and user-defined types and functions. XRoaster is a graphical tool that we have developed to help the user create all the XML metadata elements to be used in MOCHA %B Thirteenth International Conference on Scientific and Statistical Database Management, 2001. SSDBM 2001. Proceedings %I IEEE %P 263 - 266 %8 2001/// %@ 0-7695-1218-6 %G eng %R 10.1109/SSDM.2001.938560