Michael Kay has spent most of his career as a software designer and systems architect, and has recently moved to Software AG, where he is specialising in XML database and transformation technology. He also represents Software AG on the W3C XSL Working Group. Previously he worked on a number of electronic commerce and publishing projects with ICL, the IT services supplier. His background is in database technology: he has worked on the design of network, relational, and object-oriented database software products as well as a text search engine. In the XML world he is known as the developer of the open source Saxon product.
Michael lives in Reading, Berkshire with his wife and daughter. His hobbies, as you might guess from the examples in this book, include genealogy and choral singing.