I have completed reading the second chapter of the textbook.
The nice feature of the book is "By Example" sections that contain practical illustrations for the introduced theoretical concepts.
It was interesting to read about leveraging the user interface as point of information integration (so-called "screen scraping"). At my work I used to support a legacy screen-scraping application that utilized middleware to import information from the mainframe screens into MS Word documents. Therefore I could relate to the author's words regarding controller and server bouncing being the common problems for the screen-scraping applications. The other problem was that every time the appearance of the mainframe screens had been changed, the screen-scraping utility stopped working properly because they relied on certain fields being located at certain position on the screen.
Unfortunately, the author does not give any example of the practical application of the Information Integration Approach described in the book (Identify the data, catalog the data, build the enterprise data model) in chapter 2. It would be interesting to see how that approach can be used in real life. From my understanding, it would be very hard if not impossible to create a decent enterprise data model for a large company with complex structure.