Superimposed Schemas

Shawn BowersForest Advisory Board Meeting

August 15th, 2001

The Uni-Level Description

• A generic representation for information

• Stores how the information is organized XML, Spreadsheets, Relational Model, and so on

• Supports transforming between representations and querying

A Scenario

Product Inserts

Receipts

Could a medication have caused my reaction?

Prescriptions

Superimposed Schema: Access Through Common Structure

Prescriptions

Receipts

Query

Ingredient

Prescription

RX#date

nameactive

Provider

namelocation

Instructions

Medication

RX#dateFilledbrandNamerefill#

text

Superimposed Schema: Access Through Common Structure

Product Inserts

Precautions Adverse Reactions

IngredientProduct

name name

active

inactive

Symptom

descriptionpercentage

seasonal

chronic

Query

Implications for the Forest Portal• What is done with documents once found, and can we

help? Query them to find information Remember sub-parts of documents for later use Create virtual documents Annotate for task-specific use (during a project)

• Common Document Types (with varying formats) Environmental Impact Statements Water Quality Assessment Reports Others?