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1 Journal of Applied Computer Science

1 2010

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On Distributed Data Processing in Data Grid Architecture for a Virtual Repository

Kuliberda K., Wiślicki J., Kowalski T. M., Adamus R., Kaczmarski K., Subieta K.

Journal of Applied Computer Science

2010

Vol. 18, nr 2

25-55

The article describes the problem of integration of distributed, heterogeneous and fragmented collections of data with application of the virtual repository and the data grid concept. The technology involves: wrappers enveloping external resources, a virtual network (based on the peer-topeer technology) responsible for integration of data into one global schema and a distributed index for speeding-up data retrieval. Authors present a method for obtaining data from heterogeneously structured external databases and then a procedure of integration the data to one, commonly available, global schema. The core of the described solution is based on the Stack-Based Query Language (SBQL) and virtual updatable SBQL views. The system transport and indexing layer is based on the P2P architecture.