| R. King, M. Novak, and C. Och. Sybil: Supporting heterogeneous database interoperability with lightweight alliances. In The Third International Workshop on Next Generation Information Technologies and Systems, 1997. |
....By computing mediator query capabilities and representing them in the same way as those of data sources, we enable mediators to be used by other mediators, and we also make it easier for end users to know in advance which mediator queries are feasible. 1 Introduction Many data integration systems [2, 4,5,7,10,12,18,25] use a mediation architecture [27] in which a mediator provides users with seamless access to information from heterogeneous sources. In mediation systems, one often encounters sources with diverse and limited query capabilities (e.g. an author must be provided when searching for books; house ....
R. King, M. Novak, C. Och, F. Velez. Sybil: Supporting Heterogeneous Database Interoperability with Lightweight Alliances. The 3rd International Workshop on Next Generation Information Technologies and Systems, Israel, 1997.
....under DARPA NASA contract NAG2 862, and under NSF award IRI 9632595. Pegasus [30] UniSQL [14] multidatabase systems (e.g. InterBase [20] and Federated databases [10] Sanctuary is a database integration and evolution environment for supporting exactly such large, heterogeneous environments [15, 16] 1 . COIL (Common Object Interconnection Language) is a language being designed for use within Sanctuary that: allows the specification of points of interconnection between objects and data transformations across those points of interconnection; and which can support application level module ....
.... of new object oriented applications atop old CODASYL applications; support the interoperation of the storage system of the WinWin application from USC and a CORBA based system; and, support the integration of the objectoriented Catalyst software engineering environment with ODBC compliant DBMSs [15, 16]. 2. Background: The Sanctuary COIL Architecture and Implementation The Sanctuary approach is based on loosely coupling databases or other sources of persistent data into what might be thought of as lightweight alliances tailored for a specific application (or set of applications) At the ....
R. King, M. Novak, and C. Och. Sybil: Supporting heterogeneous database interoperability with lightweight alliances. In The Third International Workshop on Next Generation Information Technologies and Systems, 1997.
....languages (e.g. C ) And third, although building such an alliance involves building some constructs specific to the database systems involved, many of these constructs are reusable for other alliances involving either CODASYL systems or object systems. For further discussion of Sybil see [4] and [5] Acknowledgements The authors would like to acknowledge the input of Rick Hull during the early stages of this research project. The general concept of an alliance was developed during conversations that included him. ....
R. King, M. Novak, and C. Och. Sybil: Supporting heterogeneous database interoperability with lightweight alliances. In The Third International Workshop on Next Generation Information Technologies and Systems, 1997.
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