with David McGoveran   Note: This a multi-part re-write of a previous series intended, when completed, to replace it. In the meantime you ca...

In an old article I used a Hay-Ross exchange to illustrate how disregard for fundamentals and the associated name proliferation -- which un...

Note: This is a re-write of a previous post. "I have a database for a school ... [with] numerous tables obviously, but consider th...

Note: This is a re-write of two older posts, to bring them into line with McGoveran's formalization, re-interpretation, and extension[...

In Part 1 we outlined some fundamentals of database design, namely the distinction between normalization to 1NF, and further normalizatio...

Note: This is a re-write of older posts (which now link here), to bring them into line with the McGoveran formalization, re-interpretation...

In Part 1 we presented some foundation knowledge with which to debunk misconceptions lurking in the "data modeling" mess in the i...

In Part 1 we presented some foundation knowledge with which to debunk misconceptions lurking in the industry's modeling mess that Frie...

“The term data model is used in two distinct but closely related senses. Sometimes it refers to an abstract formalization of the objects a...

“Fabian - With respect, maybe it's time to' shake the formal foundations' of data management, especially given the rising cost...

“Ok, now that we have those two (Parts 3 and 4 of your series) 'on the table' so to speak, perhaps you would address these question...

In Part 1 and Part 2   we explained that between 1975-81, when the E/RM and RDM were introduced, there was no distinction between an inform...

Re-write 10/17/18 Revised 11/1/18 In Part 1 we explained that when the RDM and the E/RM were introduced, the distinct conceptual-logical-...

Re-write 10/16/18 “E/RM is a data model -- So says Date, Chen, etc. So says the majority of current industry experts ... With very stron...

Note: This is a 8/24/17 rewrite of a 5/20/13 post to bring it in line with McGoveran's formal exposition of Codd's RDM [1] and it...

What's Wrong with Last Week's Picture ( Question about relational model ) There are relationships at both the conceptual and logic...

From last week: What's wrong with this picture? (Kinds of Data Models, LinkedIn.com) David Hay: "Part of the ... confusion as to...

A serious problem in the database field is not just that many data professionals do not know and understand the RDM, but also that they beli...