47
P.A. Bernstein, S. Melnik: Meta Data Management, ICDE'04 Boston
Change Propagation (cont’d)
xsd1
xsd2
rdb1
map1
2. map3
rdb3
3. map4
1. map2
xsd2¢
4. map5
4. <xsd2¢, map5> =
           Diff(xsd2,map4)
rdb4
5. map6
5. <rdb4, map6> =
           ModelGen(xsd2¢, SQL)