Editor's Corner
by Patrick Hallock

InConcept is now seven years old. This is look back at it's founders and the progress of InConcept. Also to see who remembers the first logo. 

Microsoft New Database Modeling Tool : Part 3
by Dr. Terry Halpin

This is the third in a series of articles introducing the Visio-based database modeling component of Microsoft Visual Studio .NET Enterprise Architect. Part 1 discussed how to create a basic ORM source model, map it to a logical database model, and generate a DDL script for the physical database schema. Part 2 discussed how to use the verbalizer, mark an object type as independent, objectify an association, and add some other ORM constraints to an ORM source model. Part 3 shows how to add set-comparison constraints (subset, equality and exclusion) and how exclusive-or constraints are obtained by combining exclusion and disjunctive mandatory constraints. ..

Entropy of a Data Model
by Sakti Prasanna Bhattacharya

After creating the initial ideal data model, it tends to have performance problems over years of changes. This presents a formula for helping determine the entropy of the new version of the system based on changes.

Dr. John Sharp
Reprint of the August Analysis Problem - A correction
August Analysis Problem Solution
October Analysis Problem

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