Acknowledgements and further research
Beck, K. https://github.com/KentBeck [accessed: 19 April 2016].
Clegg, D. and Barker, R. (2004) Case Method Fast-Track: A RAD Approach. Addison Wesley.
Cohn, M. (2004) User Stories Applied: For Agile Software Development. Addison Wesley.
Coleman, L.B. Sr. (2015) The Customer-Driven Organization: Employing the Kano Model. Apple Academic Press.
Jeffries, R. http://ronjeffries.com/ [accessed: 19 April 2016].