This is work in progress. I started this project a few years ago, with the long term goal of developing a tutorial on middleware, illustrated by examples of open source systems. The initial plan was to publish it as a book. As this prospect became more and more remote, due to other commitments and to the moving nature of the target, I decided to make the material available "as is", in its very much incomplete and imperfect form. I expect to keep updating this site on an irregular basis, as the work goes on (see update log below).

Comments and suggestions are most welcome.

The material is here.

Enjoy!

The html version allows easy browsing, but a few formulas or figures may be imperfectly rendered.
The pdf version is the reference. It is available both for the whole book and for individual chapters.