1. The Chaos Report. The Standish Group 1994; see www.standishgroup.com/sample_research/chaos_1994_1.php. The Chaos Report. The Standish Group 1994; see www.standishgroup.com/sample_research/chaos_1994_1.php.
2. Buschmann F. Meunier R. Rohnert H. Sommerlad P. and Stal M. Pattern-Oriented Software Architecture: A System of Patterns. John Wiley & Sons Ltd. Chichester U.K. 1996. Buschmann F. Meunier R. Rohnert H. Sommerlad P. and Stal M. Pattern-Oriented Software Architecture: A System of Patterns. John Wiley & Sons Ltd. Chichester U.K. 1996.
3. The pros and cons of adopting and applying design patterns in the real world
4. Object-oriented patterns