Essential Strategies, Inc
13 Hilshire
Grove Lane, Houston, Texas 77055
(713) 464-8316
What's
New?
Articles
TDAN Series on Business Rules and Data Models
§
"What Data Models Can Do" - How data models are good at
presenting terms and facts, as well as derived attributes. The article includes
the beginnings of a metamodel for business rules. 
(The Data Administration Newsletter,
January, 2004)
§
"What Data Models Cannot Do" - Constraints, including those
that can be portrayed by an entity/relationship model and those that cannot.
The article includes the beginnings of a metamodel
for business rules.
(The Data Administration Newsletter,
April, 2004)
§
"The Business Constraint Metamodel" - The metamodel
describing what a constraint is. This illuminuates
exactly what we cannot represent in a data model and why.
(The Data Administration Newsletter,
July, 2004)
§
"What Exactly Is a Data Model?", DM Review, February-April,
2003.
A
three-part series defining and clarifying the different kinds of data models
that are being produced today. This article is about data models and the
"Business owner's view" of the enterprise.
(DM
Review does not permit direct links to its web site, but you can go directly
to the links shown below.)
§
Part One - What is a model? External models.
( http://dmreview.com/master.cfm?NavID=55&EdID=6281 )
§
Part Two - Conceptual models.
( http://dmreview.com/master.cfm?NavID=193&EdID=6399 )
§
Part Three - Logical and physical models.
(
http://dmreview.com/master.cfm?NavID=198&EdID=6502 )