The Hard Truth of Data Accuracy
Data Accuracy is one of the so-called “dimensions” of Data Quality. The goal for these dimensions, and it is a noble…
Malcolm Chisholm
Is Junk Metadata a Data Catalog Risk?
Many of us know what a hoarder is. There have been shows about individuals who fill their dwellings with what…
The Current Explosion of Data Catalogs
About 540 million years ago most of the animal body plans we see today suddenly appeared in a “relatively brief”…
Just What is Data Quality?
Data Quality (DQ) continues to be an area that many data professionals pay lip service to, but are often unable…
Is a Science of Data Possible?
Malcolm Chisholm presents a case for a science of data.
Governance for Taxonomic Reference Data
Reference data is the Rodney Dangerfield of the data world – it gets no respect. However, it is feared. Malcolm…
Why Data Models Do Not Work: The Role of Reference Data
There is an urgent need to acknowledge the limitations of data models and find a way to bridge the logical-physical…
Key Wars: Episode 1
Published in TDAN.com July 2004 A couple of years ago I was at a DAMA Day event in…
Understanding Hidden Subtypes
Published in TDAN.com April 2004 Introduction Subtypes can be found in many data models. They occur when an entity (the…
In Praise of Intelligent Keys
Published in TDAN.com January 2004 Intelligent keys are something that most data analysts abhor. Unfortunately, they are quite common, and…