Adapting the "staged model for software evolution" to free/libre/open source software
Andrea Capiluppi, Jesus M. Gonzalez-Barahona, Israel Herraiz, Gregório Robles · 2007
Research into traditional software evolution has been tackled from two broad perspectives: that focused on the how, which looks at the processes, methods and techniques to implement and evolve software; and that focused on the what/why perspective, aiming at achieving an understanding of the drivers and general characteristics of the software evolution phenomenon.