The book describes what we mean by requirements for systems, more specifically for information systems, and how you can specify them. Also available in Dutch.

You have requirements for everything you use. When you don't specify the correct requirements, you will not get what you expect: software that does not fully apply the fiscal rules for calculating VAT or a watch that is difficult to read.

This book is primarily intended to help with specifying requirements for information systems, but b...

The first half of ‘Databases and SQL’ discusses what a database is, the essence of what a database management system is, the place of database technology in system development and the relational model on which relational databases are based.

The book gives definitions of the concepts of the relational model, it shows the way a relational database is designed, how to verify the design of a relational database and how to implement a relational database with the use of SQL.

The second half ...