From Ingres Community Wiki

Connecting with Ingres: Understanding the Architecture

Ever wonder how Ingres, Ingres/Net, Enterprise Access, Star, OpenROAD, and all the other offerings fit together? Do you need to understand which drivers to use, how to interface and take advantage of Ingres within your solution? This Connecting with Ingres Architecture presentation is an overview of how the various products work together and how to adapt the Ingres family of solutions to meet your needs. A powerpoint (zipped) version is here .

NOTE that in the PDF version, the presentation is shown twice: the first set (slides 1-50) just contains the slides, whereas the 2nd set (slides 51 - 100) contains the slides WITH notes.