Translation Process Overview

source

schema

constraint

mapping

constraint

mapping

rules

[lname “Smith”]

[fname “John”]

[license “4HDQ973”]

[price 9000]

[car-type “ford-taurus”]

[year 1994]

[mileage 80000]

[unit “km”]

[color “blue”]

Data in

Source Context

[owner “Smith, J.”]

[id# “4HDQ973”]

[price 9000]

[model “taurus-94”]

[make “ford”]

[mileage 50000]

[color-code “BL”]

[dealer “Ford 101”]

Data in

Target Context

target

schema

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