Databases Reference
In-Depth Information
aspect of modeling in detail with the presentation of the
state machine Address in Chapter 9.
A.6. Insight into the XML schema
The XML schema below presents the
Postal Code
class,
i.e. the associative class between
Territory Office
and
City
. It
is easy to distinguish two foreign keys and the “/postal code”
derived attribute, the business rule of which is attached in
the model in the form of a declaration towards a Java class.
When using a BRMS, calling on the rules engine would be at
our disposal, which would avoid a hard-coded rule in Java
programming language.
FK to
Territory
Office
FK to
City
Rule declaration for the
postal code computation
XSD generated by EBX.Platform Model-driven MDM tool of Orchestra Networks
Figure A.10.
Example of XML schema with Postal Code
