"Enterprise Physics" Radically Simplifies Software Engineering

A Concrete Example1: IF STATUS(Supplier) < 20
                                        AND Supplier = Shipper
                                         THEN QUANITY(Shipper) ≤ 500

Associated checks do not now have to be procedurally encoded in routines such as:

Fewer opportunities for inconsistency and easier to find if occurs.

1 What Not How
C J Date's Relational Database Busness Rules

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©2007 Charles Petrie - permission to reproduce widely with attribution