Perpetual Design-Think
http://www.sprez.com/articles/newsperpetualredesign.html

Ferlazzo, Ellen Lawson
Sprezzatura Systems
2002

Abstract:

Software is sometimes poorly designed to begin with and the interface should be scrapped and rebuilt from scratch. But more often than not, I see software that started with a decent design and has since had features added onto it with each release, squeezed into the existing design rather than being designed in. People aren't in a design mindset but an 'enhancement' mindset somehow.