A performance analysis of view materialization strategies
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
A framework for supporting data integration using the materialized and virtual approaches
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Meaningful change detection in structured data
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
Supporting multiple view maintenance policies
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
Efficient view maintenance at data warehouses
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
Incremental maintenance of materialized OQL views
Proceedings of the 3rd ACM international workshop on Data warehousing and OLAP
Updating Distributed Materialized Views
IEEE Transactions on Knowledge and Data Engineering
A Systematic Approach to Selecting Maintenance Policies in a Data Warehouse Environment
EDBT '02 Proceedings of the 8th International Conference on Extending Database Technology: Advances in Database Technology
Efficient Snapshot Differential Algorithms for Data Warehousing
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
A User-centric View of Data Warehouse Maintenance Issues
BNCOD 17 Proceedings of the 17th British National Conferenc on Databases: Advances in Databases
Incremental maintenance of consistent data warehouses
Incremental maintenance of consistent data warehouses
Database research at UT Arlington
ACM SIGMOD Record
DOLAP '03 Proceedings of the 6th ACM international workshop on Data warehousing and OLAP
Evaluating maintenance policies for externally materialised multi-source views
BNCOD'03 Proceedings of the 20th British national conference on Databases
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Data warehouse maintenance is the task of updating a materialised view to reflect changes to autonomous, heterogeneous and distributed sources. Selection of a maintenance policy has been shown to depend on source and view properties, and on the user specified criteria (such as staleness, response time etc.), which are mapped on to evaluation criteria. In our previous work, we have analysed source and view characteristics, and user requirements to derive a costmodel. Maintenance policy selection has thus been cast as an optimisation problem.This paper takes a complementary approach to evaluating maintenance policies, by implementing a test-bed which allows us to vary source characteristics and wrapper location. The test-bed is instrumented to allow costs associated with a policy to be measured. An actual DBMS (InterBase) has been used as a relational source and an XML web server has been used as a non-relational source. The experiments clearly show that maintenance policy performance can be highly sensitive to source capabilities, which can therefore significantly affect policy selection. They have further substantiated some of the conjectures found in the literature. Some of the lessons learnt from this test-bed implementation and evaluation are reviewed.