Information integration in SIMS: 1

Goal: to enable database

access planning, SIMS

needs a model of the domain and of the data sources

When modeling:

• address semantic heterogeneity in domain model:

...described sources using Loom’s Description Logic

• address syntactic (format) heterogeneity:

...standardize access to sources:

• structured: handled DBMS, Oracle, MS Access
• semistructured: created wrappers for html, pdf

Jose-Luis Ambite, Rsch Scientist, ISI

Andrew Philpot, Sr Programmer, ISI

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