Re: [xml-dev] XML Schema as a data modeling tool

[Stephen Cameron <steve.cameron.62@gmail.com>]

The Entity-Relationship Model: Toward a Unified View of Data (1976) by Peter Pin-shan Chen

A relational model of data for large shared data banks (1983) by E F Codd

On Fri, Oct 4, 2013 at 5:10 PM, Michael Kay <mike@saxonica.com> wrote:

On 4 Oct 2013, at 00:03, Stephen Cameron wrote:

The introduction
of the relational data model had sparked Entity Relationship Modeling

Oh dear. If they get their history wrong in the second paragraph, it makes me stop reading. ERM was in widespread use long before significant take-up of the relational model.

Michael Kay

Saxonica